Vulnerabilites related to xen - xen
CVE-2014-1950 (GCVE-0-2014-1950)
Vulnerability from cvelistv5
Published
2014-02-14 15:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Use-after-free vulnerability in the xc_cpupool_getinfo function in Xen 4.1.x through 4.3.x, when using a multithreaded toolstack, does not properly handle a failure by the xc_cpumap_alloc function, which allows local users with access to management functions to cause a denial of service (heap corruption) and possibly gain privileges via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/12/17 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://xenbits.xen.org/xsa/advisory-88.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2018-15471 (GCVE-0-2018-15471)
Vulnerability from cvelistv5
Published
2018-08-17 17:00
Modified
2024-08-05 09:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.
References
| ▼ | URL | Tags |
|---|---|---|
| https://usn.ubuntu.com/3820-1/ | vendor-advisory, x_refsource_UBUNTU | |
| http://xenbits.xen.org/xsa/advisory-270.html | x_refsource_MISC | |
| https://usn.ubuntu.com/3820-2/ | vendor-advisory, x_refsource_UBUNTU | |
| https://bugs.chromium.org/p/project-zero/issues/detail?id=1607 | x_refsource_MISC | |
| https://www.debian.org/security/2018/dsa-4313 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html | mailing-list, x_refsource_MLIST | |
| https://usn.ubuntu.com/3819-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3820-3/ | vendor-advisory, x_refsource_UBUNTU |
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CVE-2020-25596 (GCVE-0-2020-25596)
Vulnerability from cvelistv5
Published
2020-09-23 21:28
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a #GP fault, and incorrectly delivers it twice to the guest. This causes the guest kernel to observe a kernel-privilege #GP fault (typically fatal) rather than a user-privilege #GP fault (usually converted into SIGSEGV/etc.). Malicious or buggy userspace can crash the guest kernel, resulting in a VM Denial of Service. All versions of Xen from 3.2 onwards are vulnerable. Only x86 systems are vulnerable. ARM platforms are not vulnerable. Only x86 systems that support the SYSENTER instruction in 64bit mode are vulnerable. This is believed to be Intel, Centaur, and Shanghai CPUs. AMD and Hygon CPUs are not believed to be vulnerable. Only x86 PV guests can exploit the vulnerability. x86 PVH / HVM guests cannot exploit the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-339.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2012-6031 (GCVE-0-2012-6031)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 21:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_tmem_get function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (CPU hang and host crash) via unspecified vectors related to a spinlock being held in the "bad_copy error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1027482 | vdb-entry, x_refsource_SECTRACK | |
| http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/55410 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2012/09/05/8 | mailing-list, x_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/85199 | vdb-entry, x_refsource_OSVDB | |
| http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/50472 | third-party-advisory, x_refsource_SECUNIA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2014-1894 (GCVE-0-2014-1894)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple integer overflows in unspecified suboperations in the flask hypercall in Xen 3.2.x and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1891, CVE-2014-1892, and CVE-2014-1893.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/10/8 | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-84.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2014/02/07/4 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/07/12 | mailing-list, x_refsource_MLIST |
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CVE-2017-2620 (GCVE-0-2017-2620)
Vulnerability from cvelistv5
Published
2018-07-27 19:00
Modified
2024-08-05 14:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
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CVE-2016-9817 (GCVE-0-2016-9817)
Vulnerability from cvelistv5
Published
2017-02-27 22:00
Modified
2024-08-06 02:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving a (1) data or (2) prefetch abort with the ESR_EL2.EA bit set.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-201.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201612-56 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/xsa201-3-4.7.patch | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1037358 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2016/11/29/3 | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/94581 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/xsa201-3.patch | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2016/12/05/7 | mailing-list, x_refsource_MLIST |
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CVE-2015-0777 (GCVE-0-2015-0777)
Vulnerability from cvelistv5
Published
2015-04-05 21:00
Modified
2024-08-06 04:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 (aka the Xen 3.4.x support patches for the Linux kernel 2.6.18), as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| https://bugzilla.novell.com/show_bug.cgi?id=917830 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/73921 | vdb-entry, x_refsource_BID |
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CVE-2020-27671 (GCVE-0-2020-27671)
Vulnerability from cvelistv5
Published
2020-10-22 20:34
Modified
2024-08-04 16:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-346.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-346.html | x_refsource_MISC | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html | vendor-advisory, x_refsource_SUSE | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4804 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2021/01/19/8 | mailing-list, x_refsource_MLIST |
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CVE-2022-23035 (GCVE-0-2022-23035)
Vulnerability from cvelistv5
Published
2022-01-25 13:46
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-395.txt | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2022/01/25/4 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2022/dsa-5117 | vendor-advisory, x_refsource_DEBIAN | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
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CVE-2018-7542 (GCVE-0-2018-7542)
Vulnerability from cvelistv5
Published
2018-02-27 19:00
Modified
2024-08-05 06:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-256.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1040776 | vdb-entry, x_refsource_SECTRACK | |
| https://www.debian.org/security/2018/dsa-4131 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2007-1320 (GCVE-0-2007-1320)
Vulnerability from cvelistv5
Published
2007-05-02 17:00
Modified
2024-08-07 12:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple heap-based buffer overflows in the cirrus_invalidate_region function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and possibly other products, might allow local users to execute arbitrary code via unspecified vectors related to "attempting to mark non-existent regions as dirty," aka the "bitblt" heap overflow.
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CVE-2018-19965 (GCVE-0-2018-19965)
Vulnerability from cvelistv5
Published
2018-12-08 04:00
Modified
2024-08-05 11:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX239432 | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-279.html | x_refsource_MISC | |
| https://www.debian.org/security/2019/dsa-4369 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/106182 | vdb-entry, x_refsource_BID | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html | vendor-advisory, x_refsource_SUSE |
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CVE-2012-5510 (GCVE-0-2012-5510)
Vulnerability from cvelistv5
Published
2012-12-13 11:00
Modified
2024-08-06 21:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service (hypervisor crash) via unspecified vectors.
References
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CVE-2019-17344 (GCVE-0-2019-17344)
Vulnerability from cvelistv5
Published
2019-10-08 00:02
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-290.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-290.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/25/3 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2012-6032 (GCVE-0-2012-6032)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 21:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple integer overflows in the (1) tmh_copy_from_client and (2) tmh_copy_to_client functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (memory corruption and host crash) via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1027482 | vdb-entry, x_refsource_SECTRACK | |
| http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/55410 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2012/09/05/8 | mailing-list, x_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/85199 | vdb-entry, x_refsource_OSVDB | |
| http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/50472 | third-party-advisory, x_refsource_SECUNIA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2012-3496 (GCVE-0-2012-3496)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 20:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
XENMEM_populate_physmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows local PV OS guest kernels to cause a denial of service (BUG triggered and host crash) via invalid flags such as MEMF_populate_on_demand.
References
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CVE-2017-10915 (GCVE-0-2017-10915)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The shadow-paging feature in Xen through 4.8.x mismanages page references and consequently introduces a race condition, which allows guest OS users to obtain Xen privileges, aka XSA-219.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/99174 | vdb-entry, x_refsource_BID | |
| https://xenbits.xen.org/xsa/advisory-219.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201710-17 | vendor-advisory, x_refsource_GENTOO |
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CVE-2017-15588 (GCVE-0-2017-15588)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to execute arbitrary code on the host OS because of a race condition that can cause a stale TLB entry.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101490 | vdb-entry, x_refsource_BID | |
| https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-241.html | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2024-31143 (GCVE-0-2024-31143)
Vulnerability from cvelistv5
Published
2024-07-18 13:31
Modified
2025-04-26 20:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An optional feature of PCI MSI called "Multiple Message" allows a
device to use multiple consecutive interrupt vectors. Unlike for MSI-X,
the setting up of these consecutive vectors needs to happen all in one
go. In this handling an error path could be taken in different
situations, with or without a particular lock held. This error path
wrongly releases the lock even when it is not currently held.
References
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CVE-2016-7093 (GCVE-0-2016-7093)
Vulnerability from cvelistv5
Published
2016-09-21 14:00
Modified
2024-08-06 01:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-186.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/92865 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX216071 | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1036752 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201611-09 | vendor-advisory, x_refsource_GENTOO |
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CVE-2012-3433 (GCVE-0-2012-3433)
Vulnerability from cvelistv5
Published
2012-11-24 20:00
Modified
2024-08-06 20:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2012/dsa-2531 | vendor-advisory, x_refsource_DEBIAN | |
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.openwall.com/lists/oss-security/2012/08/09/3 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/54942 | vdb-entry, x_refsource_BID | |
| http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.xen.org/archives/html/xen-devel/2012-08/msg00855.html | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html | vendor-advisory, x_refsource_SUSE |
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CVE-2014-1642 (GCVE-0-2014-1642)
Vulnerability from cvelistv5
Published
2014-01-26 11:00
Modified
2024-08-06 09:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The IRQ setup in Xen 4.2.x and 4.3.x, when using device passthrough and configured to support a large number of CPUs, frees certain memory that may still be intended for use, which allows local guest administrators to cause a denial of service (memory corruption and hypervisor crash) and possibly execute arbitrary code via vectors related to an out-of-memory error that triggers a (1) use-after-free or (2) double free.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127607.html | vendor-advisory, x_refsource_FEDORA | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/90649 | vdb-entry, x_refsource_XF | |
| http://secunia.com/advisories/56557 | third-party-advisory, x_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127580.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.openwall.com/lists/oss-security/2014/01/23/4 | mailing-list, x_refsource_MLIST | |
| http://osvdb.org/102406 | vdb-entry, x_refsource_OSVDB | |
| http://www.securitytracker.com/id/1029679 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/65097 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-83.html | x_refsource_CONFIRM |
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CVE-2017-12136 (GCVE-0-2017-12136)
Vulnerability from cvelistv5
Published
2017-08-24 14:00
Modified
2024-08-05 18:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX225941 | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-228.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/100346 | vdb-entry, x_refsource_BID | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2017/08/15/3 | mailing-list, x_refsource_MLIST | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1477651 | x_refsource_MISC | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039175 | vdb-entry, x_refsource_SECTRACK |
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CVE-2021-28712 (GCVE-0-2021-28712)
Vulnerability from cvelistv5
Published
2022-01-05 16:10
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-391.txt | x_refsource_MISC | |
| https://www.debian.org/security/2022/dsa-5050 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2022/dsa-5096 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2017-15590 (GCVE-0-2017-15590)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing x86 guest OS users to cause a denial of service (hypervisor crash) or possibly gain privileges because MSI mapping was mishandled.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-237.html | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/101500 | vdb-entry, x_refsource_BID | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2021-27379 (GCVE-0-2021-27379)
Vulnerability from cvelistv5
Published
2021-02-18 15:05
Modified
2024-08-03 20:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-366.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-366.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2021/02/23/1 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2021/dsa-4888 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2015-8338 (GCVE-0-2015-8338)
Vulnerability from cvelistv5
Published
2015-12-17 19:00
Modified
2024-08-06 08:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/78920 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-158.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1034390 | vdb-entry, x_refsource_SECTRACK | |
| http://www.debian.org/security/2016/dsa-3633 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2015-7835 (GCVE-0-2015-7835)
Vulnerability from cvelistv5
Published
2015-10-30 15:00
Modified
2024-08-06 07:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
References
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CVE-2017-10919 (GCVE-0-2017-10919)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.8.x mishandles virtual interrupt injection, which allows guest OS users to cause a denial of service (hypervisor crash), aka XSA-223.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/99159 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1038733 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-223.html | x_refsource_CONFIRM |
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CVE-2020-29479 (GCVE-0-2020-29479)
Vulnerability from cvelistv5
Published
2020-12-15 17:06
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. In the Ocaml xenstored implementation, the internal representation of the tree has special cases for the root node, because this node has no parent. Unfortunately, permissions were not checked for certain operations on the root node. Unprivileged guests can get and modify permissions, list, and delete the root node. (Deleting the whole xenstore tree is a host-wide denial of service.) Achieving xenstore write access is also possible. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-353.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2014-8867 (GCVE-0-2014-8867)
Vulnerability from cvelistv5
Published
2014-12-01 15:00
Modified
2024-08-06 13:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-0783.html | vendor-advisory, x_refsource_REDHAT | |
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/62672 | third-party-advisory, x_refsource_SECUNIA | |
| http://support.citrix.com/article/CTX201794 | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX200288 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://xenbits.xenproject.org/xsa/advisory-112.html | x_refsource_CONFIRM | |
| http://secunia.com/advisories/59949 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/71331 | vdb-entry, x_refsource_BID |
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CVE-2022-42332 (GCVE-0-2022-42332)
Vulnerability from cvelistv5
Published
2023-03-21 00:00
Modified
2025-02-13 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86 shadow plus log-dirty mode use-after-free In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Shadow mode maintains a pool of memory used for both shadow page tables as well as auxiliary data structures. To migrate or snapshot guests, Xen additionally runs them in so called log-dirty mode. The data structures needed by the log-dirty tracking are part of aformentioned auxiliary data. In order to keep error handling efforts within reasonable bounds, for operations which may require memory allocations shadow mode logic ensures up front that enough memory is available for the worst case requirements. Unfortunately, while page table memory is properly accounted for on the code path requiring the potential establishing of new shadows, demands by the log-dirty infrastructure were not taken into consideration. As a result, just established shadow page tables could be freed again immediately, while other code is still accessing them on the assumption that they would remain allocated.
References
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CVE-2020-25600 (GCVE-0-2020-25600)
Vulnerability from cvelistv5
Published
2020-09-23 21:12
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm (either bitness) ones. 32-bit x86 domains can use only 1023 channels, due to limited space in their shared (between guest and Xen) information structure, whereas all other domains can use up to 4095 in this model. The recording of the respective limit during domain initialization, however, has occurred at a time where domains are still deemed to be 64-bit ones, prior to actually honoring respective domain properties. At the point domains get recognized as 32-bit ones, the limit didn't get updated accordingly. Due to this misbehavior in Xen, 32-bit domains (including Domain 0) servicing other domains may observe event channel allocations to succeed when they should really fail. Subsequent use of such event channels would then possibly lead to corruption of other parts of the shared info structure. An unprivileged guest may cause another domain, in particular Domain 0, to misbehave. This may lead to a Denial of Service (DoS) for the entire system. All Xen versions from 4.4 onwards are vulnerable. Xen versions 4.3 and earlier are not vulnerable. Only x86 32-bit domains servicing other domains are vulnerable. Arm systems, as well as x86 64-bit domains, are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-342.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2020-15564 (GCVE-0-2020-15564)
Vulnerability from cvelistv5
Published
2020-07-07 12:25
Modified
2024-08-04 13:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_vcpu_info is used by a guest to register a shared region with the hypervisor. The region will be mapped into Xen address space so it can be directly accessed. On Arm, the region is accessed with instructions that require a specific alignment. Unfortunately, there is no check that the address provided by the guest will be correctly aligned. As a result, a malicious guest could cause a hypervisor crash by passing a misaligned address. A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). All Xen versions are vulnerable. Only Arm systems are vulnerable. x86 systems are not affected.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-327.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2020/07/07/5 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202007-02 | vendor-advisory, x_refsource_GENTOO |
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CVE-2013-1964 (GCVE-0-2013-1964)
Vulnerability from cvelistv5
Published
2013-05-21 18:00
Modified
2024-08-06 15:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.0.x and 4.1.x incorrectly releases a grant reference when releasing a non-v1, non-transitive grant, which allows local guest administrators to cause a denial of service (host crash), obtain sensitive information, or possibly have other impacts via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/59293 | vdb-entry, x_refsource_BID | |
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.openwall.com/lists/oss-security/2013/04/18/9 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2013/dsa-2666 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1028459 | vdb-entry, x_refsource_SECTRACK | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104537.html | vendor-advisory, x_refsource_FEDORA |
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CVE-2013-4494 (GCVE-0-2013-4494)
Vulnerability from cvelistv5
Published
2013-11-02 18:00
Modified
2024-08-06 16:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2013/11/01/2 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2013/11/01/3 | mailing-list, x_refsource_MLIST | |
| http://rhn.redhat.com/errata/RHSA-2014-0108.html | vendor-advisory, x_refsource_REDHAT | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-updates/2013-12/msg00059.html | vendor-advisory, x_refsource_SUSE |
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CVE-2019-17350 (GCVE-0-2019-17350)
Vulnerability from cvelistv5
Published
2019-10-08 00:00
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing Arm domU attackers to cause a denial of service (infinite loop) involving a compare-and-exchange operation.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-295.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-295.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2014-8866 (GCVE-0-2014-8866)
Vulnerability from cvelistv5
Published
2014-12-01 15:00
Modified
2024-08-06 13:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/62672 | third-party-advisory, x_refsource_SECUNIA | |
| http://support.citrix.com/article/CTX201794 | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX200288 | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-111.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/71332 | vdb-entry, x_refsource_BID | |
| http://secunia.com/advisories/59937 | third-party-advisory, x_refsource_SECUNIA |
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CVE-2014-9030 (GCVE-0-2014-9030)
Vulnerability from cvelistv5
Published
2014-11-24 15:00
Modified
2024-08-06 13:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-113.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/62672 | third-party-advisory, x_refsource_SECUNIA | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/98853 | vdb-entry, x_refsource_XF | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/71207 | vdb-entry, x_refsource_BID | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE |
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CVE-2015-5307 (GCVE-0-2015-5307)
Vulnerability from cvelistv5
Published
2015-11-16 11:00
Modified
2024-08-06 06:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c.
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CVE-2012-5513 (GCVE-0-2012-5513)
Vulnerability from cvelistv5
Published
2012-12-13 11:00
Modified
2024-08-06 21:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.
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CVE-2017-17046 (GCVE-0-2017-17046)
Vulnerability from cvelistv5
Published
2017-11-28 23:00
Modified
2024-08-05 20:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x on the ARM platform allowing guest OS users to obtain sensitive information from DRAM after a reboot, because disjoint blocks, and physical addresses that do not start at zero, are mishandled.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-245.html | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO |
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CVE-2020-29481 (GCVE-0-2020-29481)
Vulnerability from cvelistv5
Published
2020-12-15 17:51
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Access rights of Xenstore nodes are per domid. Unfortunately, existing granted access rights are not removed when a domain is being destroyed. This means that a new domain created with the same domid will inherit the access rights to Xenstore nodes from the previous domain(s) with the same domid. Because all Xenstore entries of a guest below /local/domain/<domid> are being deleted by Xen tools when a guest is destroyed, only Xenstore entries of other guests still running are affected. For example, a newly created guest domain might be able to read sensitive information that had belonged to a previously existing guest domain. Both Xenstore implementations (C and Ocaml) are vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-322.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2020/12/16/3 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA |
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CVE-2020-27673 (GCVE-0-2020-27673)
Vulnerability from cvelistv5
Published
2020-10-22 20:33
Modified
2024-08-04 16:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-332.html | x_refsource_MISC | |
| https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070 | x_refsource_MISC | |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070 | x_refsource_MISC | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html | vendor-advisory, x_refsource_SUSE | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2021/01/19/6 | mailing-list, x_refsource_MLIST |
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CVE-2015-0268 (GCVE-0-2015-0268)
Vulnerability from cvelistv5
Published
2015-02-16 15:00
Modified
2024-08-06 04:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The vgic_v2_to_sgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller (GIC) version 2, allows local guest users to cause a denial of service (host crash) by writing an invalid value to the GICD.SGIR register.
References
| ▼ | URL | Tags |
|---|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/100868 | vdb-entry, x_refsource_XF | |
| http://www.securitytracker.com/id/1031746 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-117.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/72591 | vdb-entry, x_refsource_BID |
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CVE-2022-23038 (GCVE-0-2022-23038)
Vulnerability from cvelistv5
Published
2022-03-10 19:20
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| unspecified | unspecified |
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CVE-2023-20588 (GCVE-0-2023-20588)
Vulnerability from cvelistv5
Published
2023-08-08 17:06
Modified
2024-10-17 14:23
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | AMD | EPYC™ 7001 Processors |
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CVE-2022-21127 (GCVE-0-2022-21127)
Vulnerability from cvelistv5
Published
2022-06-15 20:02
Modified
2025-05-05 16:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- information disclosure
Summary
Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2022/06/16/1 | mailing-list, x_refsource_MLIST | |
| https://security.netapp.com/advisory/ntap-20220624-0008/ | x_refsource_CONFIRM | |
| https://www.debian.org/security/2022/dsa-5178 | vendor-advisory, x_refsource_DEBIAN |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Processors |
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CVE-2022-26365 (GCVE-0-2022-26365)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-403.txt | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-403.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2022/07/05/6 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2022/dsa-5191 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html | mailing-list, x_refsource_MLIST |
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CVE-2013-1922 (GCVE-0-2013-1922)
Vulnerability from cvelistv5
Published
2013-05-13 23:00
Modified
2024-08-06 15:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
qemu-nbd in QEMU, as used in Xen 4.2.x, determines the format of a raw disk image based on the header, which allows local guest OS administrators to read arbitrary files on the host by modifying the header to identify a different format, which is used when the guest is restarted, a different vulnerability than CVE-2008-2004.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103637.html | vendor-advisory, x_refsource_FEDORA | |
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103621.html | vendor-advisory, x_refsource_FEDORA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-April/104036.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.openwall.com/lists/oss-security/2013/04/16/2 | mailing-list, x_refsource_MLIST | |
| http://www.securitytracker.com/id/1028426 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2013/04/15/3 | mailing-list, x_refsource_MLIST |
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CVE-2011-2901 (GCVE-0-2011-2901)
Vulnerability from cvelistv5
Published
2013-10-01 17:00
Modified
2024-08-06 23:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.openwall.com/lists/oss-security/2011/09/02/2 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://rhn.redhat.com/errata/RHSA-2011-1212.html | vendor-advisory, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=728042 | x_refsource_CONFIRM |
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CVE-2012-6036 (GCVE-0-2012-6036)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 21:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The (1) memc_save_get_next_page, (2) tmemc_restore_put_page and (3) tmemc_restore_flush_page functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 do not check for negative id pools, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or possibly execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1027482 | vdb-entry, x_refsource_SECTRACK | |
| http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/55410 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2012/09/05/8 | mailing-list, x_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/85199 | vdb-entry, x_refsource_OSVDB | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80326 | vdb-entry, x_refsource_XF | |
| http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/50472 | third-party-advisory, x_refsource_SECUNIA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-8555 (GCVE-0-2015-8555)
Vulnerability from cvelistv5
Published
2016-04-13 15:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1034477 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/79543 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-165.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://support.citrix.com/article/CTX203879 | x_refsource_CONFIRM |
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CVE-2014-5148 (GCVE-0-2014-5148)
Vulnerability from cvelistv5
Published
2014-10-26 20:00
Modified
2024-08-06 11:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/59934 | third-party-advisory, x_refsource_SECUNIA | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/95233 | vdb-entry, x_refsource_XF | |
| http://xenbits.xenproject.org/xsa/advisory-103.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1030725 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/69189 | vdb-entry, x_refsource_BID |
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CVE-2015-2752 (GCVE-0-2015-2752)
Vulnerability from cvelistv5
Published
2015-04-01 14:00
Modified
2024-08-06 05:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm).
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1031994 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/73448 | vdb-entry, x_refsource_BID | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/advisory-125.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html | vendor-advisory, x_refsource_FEDORA |
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CVE-2017-17563 (GCVE-0-2017-17563)
Vulnerability from cvelistv5
Published
2017-12-12 22:00
Modified
2024-08-05 20:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102169 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1040769 | vdb-entry, x_refsource_SECTRACK | |
| https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2017/12/12/2 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| https://xenbits.xen.org/xsa/advisory-249.html | x_refsource_CONFIRM | |
| https://www.debian.org/security/2018/dsa-4112 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX232096 | x_refsource_CONFIRM |
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CVE-2016-9815 (GCVE-0-2016-9815)
Vulnerability from cvelistv5
Published
2017-02-27 22:00
Modified
2024-08-06 02:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host panic) by sending an asynchronous abort.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-201.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201612-56 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/xsa201-1.patch | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1037358 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2016/11/29/3 | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/94581 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2016/12/05/7 | mailing-list, x_refsource_MLIST |
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CVE-2017-17566 (GCVE-0-2017-17566)
Vulnerability from cvelistv5
Published
2017-12-12 22:00
Modified
2024-08-05 20:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1040768 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-248.html | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/102167 | vdb-entry, x_refsource_BID | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2017/12/12/4 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| https://www.debian.org/security/2018/dsa-4112 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX232096 | x_refsource_CONFIRM |
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CVE-2023-20593 (GCVE-0-2023-20593)
Vulnerability from cvelistv5
Published
2023-07-24 19:38
Modified
2025-02-13 16:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ | AMD | Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 |
Version: various |
||||||||||||||||||||||||||||||||||||
|
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CVE-2022-42311 (GCVE-0-2022-42311)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-06 15:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
References
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CVE-2015-6654 (GCVE-0-2015-6654)
Vulnerability from cvelistv5
Published
2015-09-03 14:00
Modified
2024-08-06 07:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-141.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1033438 | vdb-entry, x_refsource_SECTRACK |
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CVE-2019-18421 (GCVE-0-2019-18421)
Vulnerability from cvelistv5
Published
2019-10-31 13:34
Modified
2024-08-05 01:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations. There are issues with restartable PV type change operations. To avoid using shadow pagetables for PV guests, Xen exposes the actual hardware pagetables to the guest. In order to prevent the guest from modifying these page tables directly, Xen keeps track of how pages are used using a type system; pages must be "promoted" before being used as a pagetable, and "demoted" before being used for any other type. Xen also allows for "recursive" promotions: i.e., an operating system promoting a page to an L4 pagetable may end up causing pages to be promoted to L3s, which may in turn cause pages to be promoted to L2s, and so on. These operations may take an arbitrarily large amount of time, and so must be re-startable. Unfortunately, making recursive pagetable promotion and demotion operations restartable is incredibly complicated, and the code contains several races which, if triggered, can cause Xen to drop or retain extra type counts, potentially allowing guests to get write access to in-use pagetables. A malicious PV guest administrator may be able to escalate their privilege to that of the host. All x86 systems with untrusted PV guests are vulnerable. HVM and PVH guests cannot exercise this vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-299.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/31/3 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00037.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2BQKX7M2RHCWDBKNPX4KEBI3MJIH6AYZ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-5154 (GCVE-0-2015-5154)
Vulnerability from cvelistv5
Published
2015-08-12 14:00
Modified
2024-08-06 06:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Heap-based buffer overflow in the IDE subsystem in QEMU, as used in Xen 4.5.x and earlier, when the container has a CDROM drive enabled, allows local guest users to execute arbitrary code on the host via unspecified ATAPI commands.
References
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CVE-2013-2212 (GCVE-0-2013-2212)
Vulnerability from cvelistv5
Published
2013-08-28 17:00
Modified
2024-08-06 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling caches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2013/07/24/6 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE |
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CVE-2016-6258 (GCVE-0-2016-6258)
Vulnerability from cvelistv5
Published
2016-08-02 16:00
Modified
2024-08-06 01:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-182.html | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/xsa182-4.6.patch | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX214954 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201611-09 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/xsa182-unstable.patch | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/xsa182-4.5.patch | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3633 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1036446 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/92131 | vdb-entry, x_refsource_BID |
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CVE-2014-7156 (GCVE-0-2014-7156)
Vulnerability from cvelistv5
Published
2014-10-02 14:00
Modified
2024-08-06 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
References
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CVE-2022-23824 (GCVE-0-2022-23824)
Vulnerability from cvelistv5
Published
2022-11-09 20:48
Modified
2025-02-13 16:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- NA
Summary
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| AMD | AMD Processors |
Version: Processor various |
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CVE-2022-42321 (GCVE-0-2022-42321)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-08-03 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
References
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CVE-2022-33742 (GCVE-0-2022-33742)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-403.txt | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-403.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2022/07/05/6 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2022/dsa-5191 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html | mailing-list, x_refsource_MLIST |
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CVE-2022-42315 (GCVE-0-2022-42315)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-06 14:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
References
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CVE-2022-42316 (GCVE-0-2022-42316)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-05 19:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
References
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CVE-2020-15566 (GCVE-0-2020-15566)
Vulnerability from cvelistv5
Published
2020-07-07 12:23
Modified
2024-08-04 13:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a host OS crash because of incorrect error handling in event-channel port allocation. The allocation of an event-channel port may fail for multiple reasons: (1) port is already in use, (2) the memory allocation failed, or (3) the port we try to allocate is higher than what is supported by the ABI (e.g., 2L or FIFO) used by the guest or the limit set by an administrator (max_event_channels in xl cfg). Due to the missing error checks, only (1) will be considered an error. All the other cases will provide a valid port and will result in a crash when trying to access the event channel. When the administrator configured a guest to allow more than 1023 event channels, that guest may be able to crash the host. When Xen is out-of-memory, allocation of new event channels will result in crashing the host rather than reporting an error. Xen versions 4.10 and later are affected. All architectures are affected. The default configuration, when guests are created with xl/libxl, is not vulnerable, because of the default event-channel limit.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-317.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2020/07/07/2 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202007-02 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-4105 (GCVE-0-2015-4105)
Vulnerability from cvelistv5
Published
2015-06-03 20:00
Modified
2024-08-06 06:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 3.3.x through 4.5.x enables logging for PCI MSI-X pass-through error messages, which allows local x86 HVM guests to cause a denial of service (host disk consumption) via certain invalid operations.
References
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CVE-2017-14316 (GCVE-0-2017-14316)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A parameter verification issue was discovered in Xen through 4.9.x. The function `alloc_heap_pages` allows callers to specify the first NUMA node that should be used for allocations through the `memflags` parameter; the node is extracted using the `MEMF_get_node` macro. While the function checks to see if the special constant `NUMA_NO_NODE` is specified, it otherwise does not handle the case where `node >= MAX_NUMNODES`. This allows an out-of-bounds access to an internal array.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100818 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-231.html | x_refsource_CONFIRM | |
| https://support.citrix.com/article/CTX227185 | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| http://www.securitytracker.com/id/1039348 | vdb-entry, x_refsource_SECTRACK |
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CVE-2017-15589 (GCVE-0-2017-15589)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to obtain sensitive information from the host OS (or an arbitrary guest OS) because intercepted I/O operations can cause a write of data from uninitialized hypervisor stack memory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/101496 | vdb-entry, x_refsource_BID | |
| https://xenbits.xen.org/xsa/advisory-239.html | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2015-3340 (GCVE-0-2015-3340)
Vulnerability from cvelistv5
Published
2015-04-28 14:00
Modified
2024-08-06 05:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.2.x through 4.5.x does not initialize certain fields, which allows certain remote service domains to obtain sensitive information from memory via a (1) XEN_DOMCTL_gettscinfo or (2) XEN_SYSCTL_getdomaininfolist request.
References
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CVE-2018-10472 (GCVE-0-2018-10472)
Vulnerability from cvelistv5
Published
2018-04-27 15:00
Modified
2024-08-05 07:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users (in certain configurations) to read arbitrary dom0 files via QMP live insertion of a CDROM, in conjunction with specifying the target file as the backing file of a snapshot.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| https://xenbits.xen.org/xsa/advisory-258.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/104002 | vdb-entry, x_refsource_BID | |
| https://www.debian.org/security/2018/dsa-4201 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2019-19580 (GCVE-0-2019-19580)
Vulnerability from cvelistv5
Published
2019-12-11 16:51
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations, because of an incomplete fix for CVE-2019-18421. XSA-299 addressed several critical issues in restartable PV type change operations. Despite extensive testing and auditing, some corner cases were missed. A malicious PV guest administrator may be able to escalate their privilege to that of the host. All security-supported versions of Xen are vulnerable. Only x86 systems are affected. Arm systems are not affected. Only x86 PV guests can leverage the vulnerability. x86 HVM and PVH guests cannot leverage the vulnerability. Note that these attacks require very precise timing, which may be difficult to exploit in practice.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-310.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-23034 (GCVE-0-2022-23034)
Vulnerability from cvelistv5
Published
2022-01-25 13:43
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-394.txt | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2022/01/25/3 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2022/dsa-5117 | vendor-advisory, x_refsource_DEBIAN | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-23037 (GCVE-0-2022-23037)
Vulnerability from cvelistv5
Published
2022-03-10 19:20
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| unspecified | unspecified |
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CVE-2024-31145 (GCVE-0-2024-31145)
Vulnerability from cvelistv5
Published
2024-09-25 10:31
Modified
2024-09-25 13:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Certain PCI devices in a system might be assigned Reserved Memory
Regions (specified via Reserved Memory Region Reporting, "RMRR") for
Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used
for platform tasks such as legacy USB emulation.
Since the precise purpose of these regions is unknown, once a device
associated with such a region is active, the mappings of these regions
need to remain continuouly accessible by the device. In the logic
establishing these mappings, error handling was flawed, resulting in
such mappings to potentially remain in place when they should have been
removed again. Respective guests would then gain access to memory
regions which they aren't supposed to have access to.
References
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CVE-2014-1891 (GCVE-0-2014-1891)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple integer overflows in the (1) FLASK_GETBOOL, (2) FLASK_SETBOOL, (3) FLASK_USER, and (4) FLASK_CONTEXT_TO_SID suboperations in the flask hypercall in Xen 4.3.x, 4.2.x, 4.1.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1892, CVE-2014-1893, and CVE-2014-1894.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/10/8 | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-84.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2014/02/07/4 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/07/12 | mailing-list, x_refsource_MLIST |
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CVE-2022-26358 (GCVE-0-2022-26358)
Vulnerability from cvelistv5
Published
2022-04-05 00:00
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
References
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CVE-2014-1666 (GCVE-0-2014-1666)
Vulnerability from cvelistv5
Published
2014-01-26 11:00
Modified
2024-08-06 09:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_physdev_op function in Xen 4.1.5, 4.1.6.1, 4.2.2 through 4.2.3, and 4.3.x does not properly restrict access to the (1) PHYSDEVOP_prepare_msix and (2) PHYSDEVOP_release_msix operations, which allows local PV guests to cause a denial of service (host or guest malfunction) or possibly gain privileges via unspecified vectors.
References
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CVE-2020-25599 (GCVE-0-2020-25599)
Vulnerability from cvelistv5
Published
2020-09-23 21:10
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. There are evtchn_reset() race conditions. Uses of EVTCHNOP_reset (potentially by a guest on itself) or XEN_DOMCTL_soft_reset (by itself covered by XSA-77) can lead to the violation of various internal assumptions. This may lead to out of bounds memory accesses or triggering of bug checks. In particular, x86 PV guests may be able to elevate their privilege to that of the host. Host and guest crashes are also possible, leading to a Denial of Service (DoS). Information leaks cannot be ruled out. All Xen versions from 4.5 onwards are vulnerable. Xen versions 4.4 and earlier are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-343.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2020/12/16/5 | mailing-list, x_refsource_MLIST |
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CVE-2019-19581 (GCVE-0-2019-19581)
Vulnerability from cvelistv5
Published
2019-12-11 16:50
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing 32-bit Arm guest OS users to cause a denial of service (out-of-bounds access) because certain bit iteration is mishandled. In a number of places bitmaps are being used by the hypervisor to track certain state. Iteration over all bits involves functions which may misbehave in certain corner cases: On 32-bit Arm accesses to bitmaps with bit a count which is a multiple of 32, an out of bounds access may occur. A malicious guest may cause a hypervisor crash or hang, resulting in a Denial of Service (DoS). All versions of Xen are vulnerable. 32-bit Arm systems are vulnerable. 64-bit Arm systems are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-307.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2021-28689 (GCVE-0-2021-28689)
Vulnerability from cvelistv5
Published
2021-06-11 14:53
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86: Speculative vulnerabilities with bare (non-shim) 32-bit PV guests 32-bit x86 PV guest kernels run in ring 1. At the time when Xen was developed, this area of the i386 architecture was rarely used, which is why Xen was able to use it to implement paravirtualisation, Xen's novel approach to virtualization. In AMD64, Xen had to use a different implementation approach, so Xen does not use ring 1 to support 64-bit guests. With the focus now being on 64-bit systems, and the availability of explicit hardware support for virtualization, fixing speculation issues in ring 1 is not a priority for processor companies. Indirect Branch Restricted Speculation (IBRS) is an architectural x86 extension put together to combat speculative execution sidechannel attacks, including Spectre v2. It was retrofitted in microcode to existing CPUs. For more details on Spectre v2, see: http://xenbits.xen.org/xsa/advisory-254.html However, IBRS does not architecturally protect ring 0 from predictions learnt in ring 1. For more details, see: https://software.intel.com/security-software-guidance/deep-dives/deep-dive-indirect-branch-restricted-speculation Similar situations may exist with other mitigations for other kinds of speculative execution attacks. The situation is quite likely to be similar for speculative execution attacks which have yet to be discovered, disclosed, or mitigated.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-370.txt | x_refsource_MISC |
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CVE-2011-3346 (GCVE-0-2011-3346)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 23:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Buffer overflow in hw/scsi-disk.c in the SCSI subsystem in QEMU before 0.15.2, as used by Xen, might allow local guest users with permission to access the CD-ROM to cause a denial of service (guest crash) via a crafted SAI READ CAPACITY SCSI command. NOTE: this is only a vulnerability when root has manually modified certain permissions or ACLs.
References
| ▼ | URL | Tags |
|---|---|---|
| http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log | x_refsource_CONFIRM | |
| http://www.redhat.com/support/errata/RHSA-2011-1401.html | vendor-advisory, x_refsource_REDHAT | |
| https://github.com/bonzini/qemu/commit/103b40f51e4012b3b0ad20f615562a1806d7f49a | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2011/10/20/2 | mailing-list, x_refsource_MLIST | |
| https://bugzilla.redhat.com/show_bug.cgi?id=736038 | x_refsource_CONFIRM | |
| https://github.com/bonzini/qemu/commit/7285477ab11831b1cf56e45878a89170dd06d9b9 | x_refsource_CONFIRM |
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CVE-2013-1952 (GCVE-0-2013-1952)
Vulnerability from cvelistv5
Published
2013-05-13 23:00
Modified
2024-08-06 15:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.x, when using Intel VT-d for a bus mastering capable PCI device, does not properly check the source when accessing a bridge device's interrupt remapping table entries for MSI interrupts, which allows local guest domains to cause a denial of service (interrupt injection) via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105533.html | vendor-advisory, x_refsource_FEDORA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2013/dsa-2666 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/59617 | vdb-entry, x_refsource_BID | |
| http://secunia.com/advisories/53312 | third-party-advisory, x_refsource_SECUNIA | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/83968 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/92984 | vdb-entry, x_refsource_OSVDB | |
| http://www.openwall.com/lists/oss-security/2013/05/02/9 | mailing-list, x_refsource_MLIST |
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CVE-2014-7188 (GCVE-0-2014-7188)
Vulnerability from cvelistv5
Published
2014-10-02 14:00
Modified
2024-08-06 12:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.
References
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CVE-2022-42322 (GCVE-0-2022-42322)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-08-03 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A's local Xenstore tree. Domain B can then create many nodes and reboot. The nodes created by domain B will now be owned by Dom0. By repeating this process over and over again an arbitrary number of nodes can be created, as Dom0's number of nodes isn't limited by Xenstore quota.
References
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CVE-2018-10981 (GCVE-0-2018-10981)
Vulnerability from cvelistv5
Published
2018-05-10 22:00
Modified
2024-08-05 07:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (host OS infinite loop) in situations where a QEMU device model attempts to make invalid transitions between states of a request.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104149 | vdb-entry, x_refsource_BID | |
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00015.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2018/05/08/3 | x_refsource_CONFIRM | |
| https://www.debian.org/security/2018/dsa-4201 | vendor-advisory, x_refsource_DEBIAN | |
| https://xenbits.xen.org/xsa/advisory-262.html | x_refsource_CONFIRM |
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CVE-2020-15563 (GCVE-0-2020-15563)
Vulnerability from cvelistv5
Published
2020-07-07 12:23
Modified
2024-08-04 13:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing x86 HVM guest OS users to cause a hypervisor crash. An inverted conditional in x86 HVM guests' dirty video RAM tracking code allows such guests to make Xen de-reference a pointer guaranteed to point at unmapped space. A malicious or buggy HVM guest may cause the hypervisor to crash, resulting in Denial of Service (DoS) affecting the entire host. Xen versions from 4.8 onwards are affected. Xen versions 4.7 and earlier are not affected. Only x86 systems are affected. Arm systems are not affected. Only x86 HVM guests using shadow paging can leverage the vulnerability. In addition, there needs to be an entity actively monitoring a guest's video frame buffer (typically for display purposes) in order for such a guest to be able to leverage the vulnerability. x86 PV guests, as well as x86 HVM guests using hardware assisted paging (HAP), cannot leverage the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-319.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2020/07/07/3 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202007-02 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-26359 (GCVE-0-2022-26359)
Vulnerability from cvelistv5
Published
2022-04-05 00:00
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
References
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CVE-2015-7972 (GCVE-0-2015-7972)
Vulnerability from cvelistv5
Published
2015-10-30 15:00
Modified
2024-08-06 08:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."
References
| ▼ | URL | Tags |
|---|---|---|
| http://support.citrix.com/article/CTX202404 | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/advisory-153.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/77365 | vdb-entry, x_refsource_BID | |
| http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1034036 | vdb-entry, x_refsource_SECTRACK |
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CVE-2022-23036 (GCVE-0-2022-23036)
Vulnerability from cvelistv5
Published
2022-03-10 19:20
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| unspecified | unspecified |
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CVE-2018-8897 (GCVE-0-2018-8897)
Vulnerability from cvelistv5
Published
2018-05-08 18:00
Modified
2024-08-05 07:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.
References
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CVE-2016-7777 (GCVE-0-2016-7777)
Vulnerability from cvelistv5
Published
2016-10-07 14:00
Modified
2024-08-06 02:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX217363 | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-190.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/93344 | vdb-entry, x_refsource_BID | |
| https://security.gentoo.org/glsa/201611-09 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1036942 | vdb-entry, x_refsource_SECTRACK |
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CVE-2016-4963 (GCVE-0-2016-4963)
Vulnerability from cvelistv5
Published
2016-06-07 14:00
Modified
2024-08-06 00:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
References
| ▼ | URL | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://www.securitytracker.com/id/1036024 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-178.html | x_refsource_CONFIRM |
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CVE-2014-4021 (GCVE-0-2014-4021)
Vulnerability from cvelistv5
Published
2014-06-18 19:00
Modified
2024-08-06 11:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.
References
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CVE-2013-2078 (GCVE-0-2013-2078)
Vulnerability from cvelistv5
Published
2013-08-14 15:00
Modified
2024-08-06 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.0.2 through 4.0.4, 4.1.x, and 4.2.x allows local PV guest users to cause a denial of service (hypervisor crash) via certain bit combinations to the XSETBV instruction.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/06/03/3 | mailing-list, x_refsource_MLIST | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1028613 | vdb-entry, x_refsource_SECTRACK |
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CVE-2019-17343 (GCVE-0-2019-17343)
Vulnerability from cvelistv5
Published
2019-10-08 00:02
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging incorrect use of the HVM physmap concept for PV domains.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-288.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-288.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/25/10 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2013-0153 (GCVE-0-2013-0153)
Vulnerability from cvelistv5
Published
2013-02-14 22:00
Modified
2024-08-06 14:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The AMD IOMMU support in Xen 4.2.x, 4.1.x, 3.3, and other versions, when using AMD-Vi for PCI passthrough, uses the same interrupt remapping table for the host and all guests, which allows guests to cause a denial of service by injecting an interrupt into other guests.
References
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CVE-2014-1895 (GCVE-0-2014-1895)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/advisory-85.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2014/02/07/12 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2014/02/10/6 | mailing-list, x_refsource_MLIST |
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CVE-2022-33746 (GCVE-0-2022-33746)
Vulnerability from cvelistv5
Published
2022-10-11 00:00
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
P2M pool freeing may take excessively long The P2M pool backing second level address translation for guests may be of significant size. Therefore its freeing may take more time than is reasonable without intermediate preemption checks. Such checking for the need to preempt was so far missing.
References
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CVE-2019-18420 (GCVE-0-2019-18420)
Vulnerability from cvelistv5
Published
2019-10-31 13:30
Modified
2024-08-05 01:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to cause a denial of service via a VCPUOP_initialise hypercall. hypercall_create_continuation() is a variadic function which uses a printf-like format string to interpret its parameters. Error handling for a bad format character was done using BUG(), which crashes Xen. One path, via the VCPUOP_initialise hypercall, has a bad format character. The BUG() can be hit if VCPUOP_initialise executes for a sufficiently long period of time for a continuation to be created. Malicious guests may cause a hypervisor crash, resulting in a Denial of Service (DoS). Xen versions 4.6 and newer are vulnerable. Xen versions 4.5 and earlier are not vulnerable. Only x86 PV guests can exploit the vulnerability. HVM and PVH guests, and guests on ARM systems, cannot exploit the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-296.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/31/1 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00037.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2BQKX7M2RHCWDBKNPX4KEBI3MJIH6AYZ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2021-28701 (GCVE-0-2021-28701)
Vulnerability from cvelistv5
Published
2021-09-08 13:02
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Another race in XENMAPSPACE_grant_table handling Guests are permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, are de-allocated when a guest switches (back) from v2 to v1. Freeing such pages requires that the hypervisor enforce that no parallel request can result in the addition of a mapping of such a page to a guest. That enforcement was missing, allowing guests to retain access to pages that were freed and perhaps re-used for other purposes. Unfortunately, when XSA-379 was being prepared, this similar issue was not noticed.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-384.txt | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-384.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2021/09/08/2 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L4MI3MQAPGILCLXBGQWPZHGE3ALSO4ZU/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEHZLIR5DFYYQBH55AERWHLO54OFU42C/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2021/dsa-4977 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HEHUIUWSSMCQGQY3GWX4J2SZGYP5W2Z/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
Impacted products
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CVE-2022-23960 (GCVE-0-2022-23960)
Vulnerability from cvelistv5
Published
2022-03-12 23:57
Modified
2024-08-03 03:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.
References
| ▼ | URL | Tags |
|---|---|---|
| https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability | x_refsource_CONFIRM | |
| https://developer.arm.com/support/arm-security-updates | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2022/03/18/2 | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2022/dsa-5173 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2024-31142 (GCVE-0-2024-31142)
Vulnerability from cvelistv5
Published
2024-05-16 13:39
Modified
2025-03-27 21:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Because of a logical error in XSA-407 (Branch Type Confusion), the
mitigation is not applied properly when it is intended to be used.
XSA-434 (Speculative Return Stack Overflow) uses the same
infrastructure, so is equally impacted.
For more details, see:
https://xenbits.xen.org/xsa/advisory-407.html
https://xenbits.xen.org/xsa/advisory-434.html
References
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CVE-2017-15594 (GCVE-0-2017-15594)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.
References
| ▼ | URL | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| https://xenbits.xen.org/xsa/advisory-244.html | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2021-3308 (GCVE-0-2021-3308)
Vulnerability from cvelistv5
Published
2021-01-26 19:58
Modified
2024-08-03 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI(-X) entries that the guest might had enabled, and hence will lead to vector exhaustion on the system, not allowing further PCI pass through devices to work properly. HVM guests with PCI pass through devices can mount a Denial of Service (DoS) attack affecting the pass through of PCI devices to other guests or the hardware domain. In the latter case, this would affect the entire host.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-360.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2021/01/26/4 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S5C42TMQYB6SDVT2MPFEWY65A6RSUVBN/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2023-46835 (GCVE-0-2023-46835)
Vulnerability from cvelistv5
Published
2024-01-05 16:34
Modified
2025-06-17 16:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The current setup of the quarantine page tables assumes that the
quarantine domain (dom_io) has been initialized with an address width
of DEFAULT_DOMAIN_ADDRESS_WIDTH (48) and hence 4 page table levels.
However dom_io being a PV domain gets the AMD-Vi IOMMU page tables
levels based on the maximum (hot pluggable) RAM address, and hence on
systems with no RAM above the 512GB mark only 3 page-table levels are
configured in the IOMMU.
On systems without RAM above the 512GB boundary
amd_iommu_quarantine_init() will setup page tables for the scratch
page with 4 levels, while the IOMMU will be configured to use 3 levels
only, resulting in the last page table directory (PDE) effectively
becoming a page table entry (PTE), and hence a device in quarantine
mode gaining write access to the page destined to be a PDE.
Due to this page table level mismatch, the sink page the device gets
read/write access to is no longer cleared between device assignment,
possibly leading to data leaks.
References
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CVE-2018-19961 (GCVE-0-2018-19961)
Vulnerability from cvelistv5
Published
2018-12-08 04:00
Modified
2024-08-05 11:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX239432 | x_refsource_CONFIRM | |
| https://www.debian.org/security/2019/dsa-4369 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/106182 | vdb-entry, x_refsource_BID | |
| https://xenbits.xen.org/xsa/advisory-275.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html | mailing-list, x_refsource_MLIST |
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CVE-2022-42323 (GCVE-0-2022-42323)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-08-03 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A's local Xenstore tree. Domain B can then create many nodes and reboot. The nodes created by domain B will now be owned by Dom0. By repeating this process over and over again an arbitrary number of nodes can be created, as Dom0's number of nodes isn't limited by Xenstore quota.
References
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CVE-2012-5514 (GCVE-0-2012-5514)
Vulnerability from cvelistv5
Published
2012-12-13 11:00
Modified
2024-08-06 21:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors.
References
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CVE-2018-18883 (GCVE-0-2018-18883)
Vulnerability from cvelistv5
Published
2018-11-01 00:00
Modified
2024-08-05 11:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-278.html | x_refsource_MISC | |
| http://www.securitytracker.com/id/1042021 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/105817 | vdb-entry, x_refsource_BID |
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CVE-2017-8905 (GCVE-0-2017-8905)
Vulnerability from cvelistv5
Published
2017-05-11 19:00
Modified
2024-08-05 16:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.6.x on 64-bit platforms mishandles a failsafe callback, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-215.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201705-11 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1038388 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-215.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/98436 | vdb-entry, x_refsource_BID | |
| https://blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/ | x_refsource_CONFIRM |
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CVE-2015-1563 (GCVE-0-2015-1563)
Vulnerability from cvelistv5
Published
2015-02-09 11:00
Modified
2024-08-06 04:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The ARM GIC distributor virtualization in Xen 4.4.x and 4.5.x allows local guests to cause a denial of service by causing a large number messages to be logged.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securitytracker.com/id/1031663 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2015/01/29/9 | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-118.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/72766 | vdb-entry, x_refsource_BID |
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CVE-2017-10912 (GCVE-0-2017-10912)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.8.x mishandles page transfer, which allows guest OS users to obtain privileged host OS access, aka XSA-217.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/99158 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1038721 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-217.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201710-17 | vendor-advisory, x_refsource_GENTOO |
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CVE-2020-27674 (GCVE-0-2020-27674)
Vulnerability from cvelistv5
Published
2020-10-22 20:33
Modified
2024-08-04 16:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-286.html | x_refsource_MISC | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3U4LNKKXU4UP4Z5XP6TMIWSML3QODPE/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZAM3LYJ5TZLSSNL3KXFILM46QKVTOUA/ | vendor-advisory, x_refsource_FEDORA | |
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| https://www.debian.org/security/2020/dsa-4804 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2021/01/19/5 | mailing-list, x_refsource_MLIST |
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CVE-2013-1920 (GCVE-0-2013-1920)
Vulnerability from cvelistv5
Published
2013-04-12 22:00
Modified
2024-08-06 15:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors.
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CVE-2009-3525 (GCVE-0-2009-3525)
Vulnerability from cvelistv5
Published
2009-10-05 19:00
Modified
2024-08-07 06:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The pyGrub boot loader in Xen 3.0.3, 3.3.0, and Xen-3.3.1 does not support the password option in grub.conf for para-virtualized guests, which allows attackers with access to the para-virtualized guest console to boot the guest or modify the guest's kernel boot parameters without providing the expected password.
References
| ▼ | URL | Tags |
|---|---|---|
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9466 | vdb-entry, signature, x_refsource_OVAL | |
| http://www.openwall.com/lists/oss-security/2009/09/25/1 | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/36908 | third-party-advisory, x_refsource_SECUNIA | |
| https://bugzilla.redhat.com/show_bug.cgi?id=525740#c0 | x_refsource_CONFIRM | |
| http://www.redhat.com/support/errata/RHSA-2009-1472.html | vendor-advisory, x_refsource_REDHAT | |
| http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00002.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/36523 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id?1022950 | vdb-entry, x_refsource_SECTRACK | |
| https://bugzilla.redhat.com/show_bug.cgi?id=525740 | x_refsource_CONFIRM | |
| http://xenbits.xensource.com/xen-unstable.hg?rev/8f783adc0ee3 | x_refsource_CONFIRM |
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CVE-2012-3515 (GCVE-0-2012-3515)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 20:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a "device model's address space."
References
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CVE-2020-11741 (GCVE-0-2020-11741)
Vulnerability from cvelistv5
Published
2020-04-14 12:18
Modified
2024-08-04 11:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-313.html | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-313.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2020/04/14/1 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202005-08 | vendor-advisory, x_refsource_GENTOO | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2011-1936 (GCVE-0-2011-1936)
Vulnerability from cvelistv5
Published
2014-01-07 19:00
Modified
2024-08-06 22:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen, when using x86 Intel processors and the VMX virtualization extension is enabled, does not properly handle cpuid instruction emulation when exiting the VM, which allows local guest users to cause a denial of service (guest crash) via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2011-0927.html | vendor-advisory, x_refsource_REDHAT | |
| http://www.openwall.com/lists/oss-security/2011/07/07/3 | mailing-list, x_refsource_MLIST |
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CVE-2020-29480 (GCVE-0-2020-29480)
Vulnerability from cvelistv5
Published
2020-12-15 17:08
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Neither xenstore implementation does any permission checks when reporting a xenstore watch event. A guest administrator can watch the root xenstored node, which will cause notifications for every created, modified, and deleted key. A guest administrator can also use the special watches, which will cause a notification every time a domain is created and destroyed. Data may include: number, type, and domids of other VMs; existence and domids of driver domains; numbers of virtual interfaces, block devices, vcpus; existence of virtual framebuffers and their backend style (e.g., existence of VNC service); Xen VM UUIDs for other domains; timing information about domain creation and device setup; and some hints at the backend provisioning of VMs and their devices. The watch events do not contain values stored in xenstore, only key names. A guest administrator can observe non-sensitive domain and device lifecycle events relating to other guests. This information allows some insight into overall system configuration (including the number and general nature of other guests), and configuration of other guests (including the number and general nature of other guests' devices). This information might be commercially interesting or might make other attacks easier. There is not believed to be exposure of sensitive data. Specifically, there is no exposure of VNC passwords, port numbers, pathnames in host and guest filesystems, cryptographic keys, or within-guest data.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-115.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA |
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CVE-2016-10024 (GCVE-0-2016-10024)
Vulnerability from cvelistv5
Published
2017-01-26 15:00
Modified
2024-08-06 03:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.8.x allows local x86 PV guest OS kernel administrators to cause a denial of service (host hang or crash) by modifying the instruction stream asynchronously while performing certain kernel operations.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201612-56 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/advisory-202.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/95021 | vdb-entry, x_refsource_BID | |
| http://www.debian.org/security/2017/dsa-3847 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1037517 | vdb-entry, x_refsource_SECTRACK | |
| https://support.citrix.com/article/CTX219378 | x_refsource_CONFIRM |
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CVE-2016-6259 (GCVE-0-2016-6259)
Vulnerability from cvelistv5
Published
2016-08-02 16:00
Modified
2024-08-06 01:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92130 | vdb-entry, x_refsource_BID | |
| http://support.citrix.com/article/CTX214954 | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1036447 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/xsa183-unstable.patch | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-183.html | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/xsa183-4.6.patch | x_refsource_CONFIRM |
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CVE-2015-5166 (GCVE-0-2015-5166)
Vulnerability from cvelistv5
Published
2015-08-12 14:00
Modified
2024-08-06 06:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securityfocus.com/bid/76152 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1033175 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-139.html | x_refsource_CONFIRM |
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CVE-2016-10013 (GCVE-0-2016-10013)
Vulnerability from cvelistv5
Published
2017-01-26 15:00
Modified
2024-08-06 03:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/94963 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1037491 | vdb-entry, x_refsource_SECTRACK | |
| http://www.debian.org/security/2017/dsa-3847 | vendor-advisory, x_refsource_DEBIAN | |
| http://xenbits.xen.org/xsa/advisory-204.html | x_refsource_CONFIRM |
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CVE-2020-25602 (GCVE-0-2020-25602)
Vulnerability from cvelistv5
Published
2020-09-23 21:16
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. An x86 PV guest can trigger a host OS crash when handling guest access to MSR_MISC_ENABLE. When a guest accesses certain Model Specific Registers, Xen first reads the value from hardware to use as the basis for auditing the guest access. For the MISC_ENABLE MSR, which is an Intel specific MSR, this MSR read is performed without error handling for a #GP fault, which is the consequence of trying to read this MSR on non-Intel hardware. A buggy or malicious PV guest administrator can crash Xen, resulting in a host Denial of Service. Only x86 systems are vulnerable. ARM systems are not vulnerable. Only Xen versions 4.11 and onwards are vulnerable. 4.10 and earlier are not vulnerable. Only x86 systems that do not implement the MISC_ENABLE MSR (0x1a0) are vulnerable. AMD and Hygon systems do not implement this MSR and are vulnerable. Intel systems do implement this MSR and are not vulnerable. Other manufacturers have not been checked. Only x86 PV guests can exploit the vulnerability. x86 HVM/PVH guests cannot exploit the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-333.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-8554 (GCVE-0-2015-8554)
Vulnerability from cvelistv5
Published
2016-04-14 14:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1034481 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-164.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/79579 | vdb-entry, x_refsource_BID | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://support.citrix.com/article/CTX203879 | x_refsource_CONFIRM |
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CVE-2012-5515 (GCVE-0-2012-5515)
Vulnerability from cvelistv5
Published
2012-12-13 11:00
Modified
2024-08-06 21:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.
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CVE-2013-4370 (GCVE-0-2013-4370)
Vulnerability from cvelistv5
Published
2013-10-17 23:00
Modified
2024-08-06 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The ocaml binding for the xc_vcpu_getaffinity function in Xen 4.2.x and 4.3.x frees certain memory that may still be intended for use, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors that trigger a (1) use-after-free or (2) double free.
References
| ▼ | URL | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2013/q4/att-61/xsa69.patch | x_refsource_MISC | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/10/10/13 | mailing-list, x_refsource_MLIST |
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CVE-2008-4993 (GCVE-0-2008-4993)
Vulnerability from cvelistv5
Published
2008-11-07 19:00
Modified
2024-08-07 10:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/args temporary file.
References
| ▼ | URL | Tags |
|---|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/46545 | vdb-entry, x_refsource_XF | |
| http://www.openwall.com/lists/oss-security/2008/10/30/2 | mailing-list, x_refsource_MLIST | |
| http://bugs.debian.org/496367 | x_refsource_CONFIRM | |
| https://bugs.gentoo.org/show_bug.cgi?id=235770 | x_refsource_CONFIRM | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2009:016 | vendor-advisory, x_refsource_MANDRIVA | |
| https://bugs.gentoo.org/show_bug.cgi?id=235805 | x_refsource_CONFIRM | |
| http://www.redhat.com/support/errata/RHSA-2009-0003.html | vendor-advisory, x_refsource_REDHAT | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9576 | vdb-entry, signature, x_refsource_OVAL | |
| http://dev.gentoo.org/~rbu/security/debiantemp/xen-utils-3.2-1 | x_refsource_CONFIRM |
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CVE-2022-26356 (GCVE-0-2022-26356)
Vulnerability from cvelistv5
Published
2022-04-05 00:00
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
References
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CVE-2020-25595 (GCVE-0-2020-25595)
Vulnerability from cvelistv5
Published
2020-09-23 21:01
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. The PCI passthrough code improperly uses register data. Code paths in Xen's MSI handling have been identified that act on unsanitized values read back from device hardware registers. While devices strictly compliant with PCI specifications shouldn't be able to affect these registers, experience shows that it's very common for devices to have out-of-spec "backdoor" operations that can affect the result of these reads. A not fully trusted guest may be able to crash Xen, leading to a Denial of Service (DoS) for the entire system. Privilege escalation and information leaks cannot be excluded. All versions of Xen supporting PCI passthrough are affected. Only x86 systems are vulnerable. Arm systems are not vulnerable. Only guests with passed through PCI devices may be able to leverage the vulnerability. Only systems passing through devices with out-of-spec ("backdoor") functionality can cause issues. Experience shows that such out-of-spec functionality is common; unless you have reason to believe that your device does not have such functionality, it's better to assume that it does.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-337.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-40982 (GCVE-0-2022-40982)
Vulnerability from cvelistv5
Published
2023-08-11 02:37
Modified
2025-02-13 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- information disclosure
- CWE-1342 - Information exposure through microarchitectural state after transient execution
Summary
Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Processors |
Version: See references |
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CVE-2020-28368 (GCVE-0-2020-28368)
Vulnerability from cvelistv5
Published
2020-11-10 18:17
Modified
2024-08-04 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-351.html | x_refsource_MISC | |
| https://platypusattack.com | x_refsource_MISC | |
| https://www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/ | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-351.html | x_refsource_CONFIRM | |
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| https://www.debian.org/security/2020/dsa-4804 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2014-5147 (GCVE-0-2014-5147)
Vulnerability from cvelistv5
Published
2014-08-29 17:00
Modified
2024-08-06 11:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.4.x, when running a 64-bit kernel on an ARM system, does not properly handle traps from the guest domain that use a different address width, which allows local guest users to cause a denial of service (host crash) via a crafted 32-bit process.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1030724 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-102.html | x_refsource_CONFIRM |
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CVE-2013-2194 (GCVE-0-2013-2194)
Vulnerability from cvelistv5
Published
2013-08-23 16:00
Modified
2024-08-06 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple integer overflows in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html | vendor-advisory, x_refsource_SUSE | |
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/06/20/4 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2013/06/20/2 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html | vendor-advisory, x_refsource_SUSE | |
| http://support.citrix.com/article/CTX138058 | x_refsource_CONFIRM |
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CVE-2015-7813 (GCVE-0-2015-7813)
Vulnerability from cvelistv5
Published
2015-10-30 15:00
Modified
2024-08-06 07:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-146.html | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1034029 | vdb-entry, x_refsource_SECTRACK |
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CVE-2016-7094 (GCVE-0-2016-7094)
Vulnerability from cvelistv5
Published
2016-09-21 14:00
Modified
2024-08-06 01:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3663 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/92864 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-187.html | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX216071 | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1036753 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201611-09 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/xsa187-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg_reg.patch | x_refsource_CONFIRM |
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CVE-2022-29900 (GCVE-0-2022-29900)
Vulnerability from cvelistv5
Published
2022-07-12 15:50
Modified
2024-11-20 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- NA
Summary
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| AMD | AMD Processors |
Version: Processor Some AMD Processors |
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CVE-2022-42319 (GCVE-0-2022-42319)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-08-03 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.
References
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CVE-2022-42327 (GCVE-0-2022-42327)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-05 19:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.
References
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CVE-2021-28710 (GCVE-0-2021-28710)
Vulnerability from cvelistv5
Published
2021-11-21 14:18
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
certain VT-d IOMMUs may not work in shared page table mode For efficiency reasons, address translation control structures (page tables) may (and, on suitable hardware, by default will) be shared between CPUs, for second-level translation (EPT), and IOMMUs. These page tables are presently set up to always be 4 levels deep. However, an IOMMU may require the use of just 3 page table levels. In such a configuration the lop level table needs to be stripped before inserting the root table's address into the hardware pagetable base register. When sharing page tables, Xen erroneously skipped this stripping. Consequently, the guest is able to write to leaf page table entries.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-390.txt | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
Impacted products
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CVE-2007-5730 (GCVE-0-2007-5730)
Vulnerability from cvelistv5
Published
2007-10-30 22:00
Modified
2024-08-07 15:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Heap-based buffer overflow in QEMU 0.8.2, as used in Xen and possibly other products, allows local users to execute arbitrary code via crafted data in the "net socket listen" option, aka QEMU "net socket" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the individual net socket listen vulnerability.
References
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CVE-2012-6035 (GCVE-0-2012-6035)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 21:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_tmem_destroy_pool function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 does not properly validate pool ids, which allows local guest OS users to cause a denial of service (memory corruption and host crash) or execute arbitrary code via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1027482 | vdb-entry, x_refsource_SECTRACK | |
| http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/55410 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2012/09/05/8 | mailing-list, x_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/85199 | vdb-entry, x_refsource_OSVDB | |
| http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/50472 | third-party-advisory, x_refsource_SECUNIA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-8104 (GCVE-0-2015-8104)
Vulnerability from cvelistv5
Published
2015-11-16 00:00
Modified
2025-04-23 15:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c.
References
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CVE-2017-14318 (GCVE-0-2017-14318)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX227185 | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1039349 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-232.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/100817 | vdb-entry, x_refsource_BID |
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CVE-2020-29484 (GCVE-0-2020-29484)
Vulnerability from cvelistv5
Published
2020-12-15 17:25
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. When a Xenstore watch fires, the xenstore client that registered the watch will receive a Xenstore message containing the path of the modified Xenstore entry that triggered the watch, and the tag that was specified when registering the watch. Any communication with xenstored is done via Xenstore messages, consisting of a message header and the payload. The payload length is limited to 4096 bytes. Any request to xenstored resulting in a response with a payload longer than 4096 bytes will result in an error. When registering a watch, the payload length limit applies to the combined length of the watched path and the specified tag. Because watches for a specific path are also triggered for all nodes below that path, the payload of a watch event message can be longer than the payload needed to register the watch. A malicious guest that registers a watch using a very large tag (i.e., with a registration operation payload length close to the 4096 byte limit) can cause the generation of watch events with a payload length larger than 4096 bytes, by writing to Xenstore entries below the watched path. This will result in an error condition in xenstored. This error can result in a NULL pointer dereference, leading to a crash of xenstored. A malicious guest administrator can cause xenstored to crash, leading to a denial of service. Following a xenstored crash, domains may continue to run, but management operations will be impossible. Only C xenstored is affected, oxenstored is not affected.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-324.txt | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA |
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CVE-2019-19577 (GCVE-0-2019-19577)
Vulnerability from cvelistv5
Published
2019-12-11 16:55
Modified
2024-08-05 02:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing x86 AMD HVM guest OS users to cause a denial of service or possibly gain privileges by triggering data-structure access during pagetable-height updates. When running on AMD systems with an IOMMU, Xen attempted to dynamically adapt the number of levels of pagetables (the pagetable height) in the IOMMU according to the guest's address space size. The code to select and update the height had several bugs. Notably, the update was done without taking a lock which is necessary for safe operation. A malicious guest administrator can cause Xen to access data structures while they are being modified, causing Xen to crash. Privilege escalation is thought to be very difficult but cannot be ruled out. Additionally, there is a potential memory leak of 4kb per guest boot, under memory pressure. Only Xen on AMD CPUs is vulnerable. Xen running on Intel CPUs is not vulnerable. ARM systems are not vulnerable. Only systems where guests are given direct access to physical devices are vulnerable. Systems which do not use PCI pass-through are not vulnerable. Only HVM guests can exploit the vulnerability. PV and PVH guests cannot. All versions of Xen with IOMMU support are vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-311.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2020-29568 (GCVE-0-2020-29568)
Vulnerability from cvelistv5
Published
2020-12-15 16:52
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-349.html | x_refsource_MISC | |
| https://www.debian.org/security/2021/dsa-4843 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | mailing-list, x_refsource_MLIST | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-33745 (GCVE-0-2022-33745)
Vulnerability from cvelistv5
Published
2022-07-26 00:00
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.
References
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CVE-2023-46840 (GCVE-0-2023-46840)
Vulnerability from cvelistv5
Published
2024-03-20 10:40
Modified
2024-11-04 21:39
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Incorrect placement of a preprocessor directive in source code results
in logic that doesn't operate as intended when support for HVM guests is
compiled out of Xen.
References
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CVE-2013-4553 (GCVE-0-2013-4553)
Vulnerability from cvelistv5
Published
2013-12-24 19:00
Modified
2024-08-06 16:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The XEN_DOMCTL_getmemlist hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always obtain the page_alloc_lock and mm_rwlock in the same order, which allows local guest administrators to cause a denial of service (host deadlock).
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2013/11/26/8 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-updates/2013-12/msg00059.html | vendor-advisory, x_refsource_SUSE |
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CVE-2016-2270 (GCVE-0-2016-2270)
Vulnerability from cvelistv5
Published
2016-02-19 16:00
Modified
2024-08-05 23:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.6.x and earlier allows local guest administrators to cause a denial of service (host reboot) via vectors related to multiple mappings of MMIO pages with different cachability settings.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/advisory-154.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1035042 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2021-28697 (GCVE-0-2021-28697)
Vulnerability from cvelistv5
Published
2021-08-27 18:37
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
grant table v2 status pages may remain accessible after de-allocation Guest get permitted access to certain Xen-owned pages of memory. The majority of such pages remain allocated / associated with a guest for its entire lifetime. Grant table v2 status pages, however, get de-allocated when a guest switched (back) from v2 to v1. The freeing of such pages requires that the hypervisor know where in the guest these pages were mapped. The hypervisor tracks only one use within guest space, but racing requests from the guest to insert mappings of these pages may result in any of them to become mapped in multiple locations. Upon switching back from v2 to v1, the guest would then retain access to a page that was freed and perhaps re-used for other purposes.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-379.txt | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2021/dsa-4977 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
Impacted products
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CVE-2015-8552 (GCVE-0-2015-8552)
Vulnerability from cvelistv5
Published
2016-04-13 15:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service (disk consumption) by leveraging a system with access to a passed-through MSI or MSI-X capable physical PCI device and XEN_PCI_OP_enable_msi operations, aka "Linux pciback missing sanity checks."
References
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CVE-2020-11742 (GCVE-0-2020-11742)
Vulnerability from cvelistv5
Published
2020-04-14 12:19
Modified
2024-08-04 11:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service because of bad continuation handling in GNTTABOP_copy. Grant table operations are expected to return 0 for success, and a negative number for errors. The fix for CVE-2017-12135 introduced a path through grant copy handling where success may be returned to the caller without any action taken. In particular, the status fields of individual operations are left uninitialised, and may result in errant behaviour in the caller of GNTTABOP_copy. A buggy or malicious guest can construct its grant table in such a way that, when a backend domain tries to copy a grant, it hits the incorrect exit path. This returns success to the caller without doing anything, which may cause crashes or other incorrect behaviour.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-318.html | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-318.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2020/04/14/4 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202005-08 | vendor-advisory, x_refsource_GENTOO | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN |
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"url": "http://xenbits.xen.org/xsa/advisory-318.html"
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"name": "[oss-security] 20200414 Xen Security Advisory 318 v3 (CVE-2020-11742) - Bad continuation handling in GNTTABOP_copy",
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"name": "GLSA-202005-08",
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},
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"name": "DSA-4723",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2020/dsa-4723"
}
]
}
}
}
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CVE-2023-46842 (GCVE-0-2023-46842)
Vulnerability from cvelistv5
Published
2024-05-16 13:39
Modified
2025-04-30 23:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and
other modes. This in particular means that they may set registers used
to pass 32-bit-mode hypercall arguments to values outside of the range
32-bit code would be able to set them to.
When processing of hypercalls takes a considerable amount of time,
the hypervisor may choose to invoke a hypercall continuation. Doing so
involves putting (perhaps updated) hypercall arguments in respective
registers. For guests not running in 64-bit mode this further involves
a certain amount of translation of the values.
Unfortunately internal sanity checking of these translated values
assumes high halves of registers to always be clear when invoking a
hypercall. When this is found not to be the case, it triggers a
consistency check in the hypervisor and causes a crash.
References
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"title": "CISA ADP Vulnrichment"
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}
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CVE-2014-1896 (GCVE-0-2014-1896)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/xsa86.patch | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-86.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2014/02/10/7 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2014/02/07/12 | mailing-list, x_refsource_MLIST |
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CVE-2024-2193 (GCVE-0-2024-2193)
Vulnerability from cvelistv5
Published
2024-03-15 18:03
Modified
2025-04-30 23:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths.
References
Impacted products
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CVE-2021-28706 (GCVE-0-2021-28706)
Vulnerability from cvelistv5
Published
2021-11-24 00:00
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.
References
Impacted products
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CVE-2021-28705 (GCVE-0-2021-28705)
Vulnerability from cvelistv5
Published
2021-11-24 00:00
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
issues with partially successful P2M updates on x86 T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). In some cases the hypervisor carries out the requests by splitting them into smaller chunks. Error handling in certain PoD cases has been insufficient in that in particular partial success of some operations was not properly accounted for. There are two code paths affected - page removal (CVE-2021-28705) and insertion of new pages (CVE-2021-28709). (We provide one patch which combines the fix to both issues.)
References
Impacted products
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CVE-2018-14678 (GCVE-0-2018-14678)
Vulnerability from cvelistv5
Published
2018-07-28 18:00
Modified
2024-08-05 09:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 4.17.11, as used in Xen through 4.11.x. The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S does not properly maintain RBX, which allows local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1041397 | vdb-entry, x_refsource_SECTRACK | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html | mailing-list, x_refsource_MLIST | |
| https://xenbits.xen.org/xsa/advisory-274.html | x_refsource_MISC | |
| http://www.securityfocus.com/bid/104924 | vdb-entry, x_refsource_BID | |
| https://www.debian.org/security/2018/dsa-4308 | vendor-advisory, x_refsource_DEBIAN | |
| https://usn.ubuntu.com/3931-1/ | vendor-advisory, x_refsource_UBUNTU | |
| https://usn.ubuntu.com/3931-2/ | vendor-advisory, x_refsource_UBUNTU |
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CVE-2020-29483 (GCVE-0-2020-29483)
Vulnerability from cvelistv5
Published
2020-12-15 17:15
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Xenstored and guests communicate via a shared memory page using a specific protocol. When a guest violates this protocol, xenstored will drop the connection to that guest. Unfortunately, this is done by just removing the guest from xenstored's internal management, resulting in the same actions as if the guest had been destroyed, including sending an @releaseDomain event. @releaseDomain events do not say that the guest has been removed. All watchers of this event must look at the states of all guests to find the guest that has been removed. When an @releaseDomain is generated due to a domain xenstored protocol violation, because the guest is still running, the watchers will not react. Later, when the guest is actually destroyed, xenstored will no longer have it stored in its internal data base, so no further @releaseDomain event will be sent. This can lead to a zombie domain; memory mappings of that guest's memory will not be removed, due to the missing event. This zombie domain will be cleaned up only after another domain is destroyed, as that will trigger another @releaseDomain event. If the device model of the guest that violated the Xenstore protocol is running in a stub-domain, a use-after-free case could happen in xenstored, after having removed the guest from its internal data base, possibly resulting in a crash of xenstored. A malicious guest can block resources of the host for a period after its own death. Guests with a stub domain device model can eventually crash xenstored, resulting in a more serious denial of service (the prevention of any further domain management operations). Only the C variant of Xenstore is affected; the Ocaml variant is not affected. Only HVM guests with a stubdom device model can cause a serious DoS.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-325.txt | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA |
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CVE-2016-9379 (GCVE-0-2016-9379)
Vulnerability from cvelistv5
Published
2017-01-23 21:00
Modified
2024-08-06 02:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The pygrub boot loader emulator in Xen, when S-expression output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via string quotes and S-expressions in the bootloader configuration file.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/xsa198.patch | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/94473 | vdb-entry, x_refsource_BID | |
| https://security.gentoo.org/glsa/201612-56 | vendor-advisory, x_refsource_GENTOO | |
| http://xenbits.xen.org/xsa/advisory-198.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1037347 | vdb-entry, x_refsource_SECTRACK | |
| https://support.citrix.com/article/CTX218775 | x_refsource_CONFIRM |
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CVE-2017-17044 (GCVE-0-2017-17044)
Vulnerability from cvelistv5
Published
2017-11-28 23:00
Modified
2024-08-05 20:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to cause a denial of service (infinite loop and host OS hang) by leveraging the mishandling of Populate on Demand (PoD) errors.
References
| ▼ | URL | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/102129 | vdb-entry, x_refsource_BID | |
| https://xenbits.xen.org/xsa/advisory-246.html | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/102008 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1039878 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/105954 | vdb-entry, x_refsource_BID | |
| https://support.citrix.com/article/CTX230138 | x_refsource_CONFIRM |
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CVE-2017-17045 (GCVE-0-2017-17045)
Vulnerability from cvelistv5
Published
2017-11-28 23:00
Modified
2024-08-05 20:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service (BUG and host OS crash) by leveraging the mishandling of Populate on Demand (PoD) Physical-to-Machine (P2M) errors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102013 | vdb-entry, x_refsource_BID | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| http://www.securitytracker.com/id/1039879 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/102129 | vdb-entry, x_refsource_BID | |
| https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html | mailing-list, x_refsource_MLIST | |
| https://xenbits.xen.org/xsa/advisory-247.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| https://support.citrix.com/article/CTX230138 | x_refsource_CONFIRM |
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CVE-2016-3159 (GCVE-0-2016-3159)
Vulnerability from cvelistv5
Published
2016-04-13 16:00
Modified
2024-08-05 23:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/advisory-172.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/85716 | vdb-entry, x_refsource_BID | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/xsa172.patch | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1035435 | vdb-entry, x_refsource_SECTRACK | |
| http://support.citrix.com/article/CTX209443 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3554 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2013-6400 (GCVE-0-2013-6400)
Vulnerability from cvelistv5
Published
2013-12-13 17:00
Modified
2024-08-06 17:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.2.x and 4.3.x, when using Intel VT-d and a PCI device has been assigned, does not clear the flag that suppresses IOMMU TLB flushes when unspecified errors occur, which causes the TLB entries to not be flushed and allows local guest administrators to cause a denial of service (host crash) or gain privileges via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55932 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id/1029468 | vdb-entry, x_refsource_SECTRACK | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125081.html | vendor-advisory, x_refsource_FEDORA | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.fedoraproject.org/pipermail/package-announce/2013-December/125111.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.xen.org/archives/html/xen-announce/2013-12/msg00002.html | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2013/12/10/7 | mailing-list, x_refsource_MLIST |
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CVE-2015-4104 (GCVE-0-2015-4104)
Vulnerability from cvelistv5
Published
2015-06-03 20:00
Modified
2024-08-06 06:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 3.3.x through 4.5.x does not properly restrict access to PCI MSI mask bits, which allows local x86 HVM guest users to cause a denial of service (unexpected interrupt and host crash) via unspecified vectors.
References
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CVE-2022-42334 (GCVE-0-2022-42334)
Vulnerability from cvelistv5
Published
2023-03-21 00:00
Modified
2025-02-13 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).
References
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CVE-2014-8594 (GCVE-0-2014-8594)
Vulnerability from cvelistv5
Published
2014-11-19 18:00
Modified
2024-08-06 13:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/62672 | third-party-advisory, x_refsource_SECUNIA | |
| http://xenbits.xen.org/xsa/advisory-109.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/71149 | vdb-entry, x_refsource_BID | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/98767 | vdb-entry, x_refsource_XF |
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CVE-2020-27670 (GCVE-0-2020-27670)
Vulnerability from cvelistv5
Published
2020-10-22 20:34
Modified
2024-08-04 16:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-347.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-347.html | x_refsource_MISC | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html | vendor-advisory, x_refsource_SUSE | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4804 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2021/01/19/9 | mailing-list, x_refsource_MLIST |
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CVE-2011-2519 (GCVE-0-2011-2519)
Vulnerability from cvelistv5
Published
2013-12-27 01:00
Modified
2024-08-06 23:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2011/08/30/1 | mailing-list, x_refsource_MLIST | |
| http://rhn.redhat.com/errata/RHSA-2011-1212.html | vendor-advisory, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=718882 | x_refsource_CONFIRM | |
| http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644 | x_refsource_MISC |
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CVE-2012-6030 (GCVE-0-2012-6030)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 21:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The do_tmem_op function in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (host crash) and possibly have other unspecified impacts via unspecified vectors related to "broken locking checks" in an "error path." NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1027482 | vdb-entry, x_refsource_SECTRACK | |
| http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/55410 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2012/09/05/8 | mailing-list, x_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78268 | vdb-entry, x_refsource_XF | |
| http://osvdb.org/85199 | vdb-entry, x_refsource_OSVDB | |
| http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html | mailing-list, x_refsource_MLIST | |
| http://secunia.com/advisories/50472 | third-party-advisory, x_refsource_SECUNIA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2014-4022 (GCVE-0-2014-4022)
Vulnerability from cvelistv5
Published
2014-07-09 14:00
Modified
2024-08-06 11:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The alloc_domain_struct function in arch/arm/domain.c in Xen 4.4.x, when running on an ARM platform, does not properly initialize the structure containing the grant table pages for a domain, which allows local guest administrators to obtain sensitive information via the GNTTABOP_setup_table subhypercall.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/68184 | vdb-entry, x_refsource_BID | |
| http://secunia.com/advisories/59523 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id/1030471 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-101.html | x_refsource_CONFIRM |
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CVE-2020-29569 (GCVE-0-2020-29569)
Vulnerability from cvelistv5
Published
2020-12-15 17:00
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-350.html | x_refsource_MISC | |
| https://www.debian.org/security/2021/dsa-4843 | vendor-advisory, x_refsource_DEBIAN | |
| https://security.netapp.com/advisory/ntap-20210205-0001/ | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | mailing-list, x_refsource_MLIST | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-7969 (GCVE-0-2015-7969)
Vulnerability from cvelistv5
Published
2015-10-30 15:00
Modified
2024-08-06 08:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall.
References
| ▼ | URL | Tags |
|---|---|---|
| http://support.citrix.com/article/CTX202404 | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securitytracker.com/id/1034033 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-149.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisory, x_refsource_DEBIAN | |
| http://xenbits.xen.org/xsa/advisory-151.html | x_refsource_CONFIRM | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/77364 | vdb-entry, x_refsource_BID |
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CVE-2022-26363 (GCVE-0-2022-26363)
Vulnerability from cvelistv5
Published
2022-06-09 12:50
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, Xen's safety logic doesn't account for CPU-induced cache non-coherency; cases where the CPU can cause the content of the cache to be different to the content in main memory. In such cases, Xen's safety logic can incorrectly conclude that the contents of a page is safe.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-402.txt | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-402.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2022/06/09/4 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OH65U6FTTB5MLH5A6Q3TW7KVCGOG4MYI/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2022/dsa-5184 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
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CVE-2013-4361 (GCVE-0-2013-4361)
Vulnerability from cvelistv5
Published
2013-10-01 17:00
Modified
2024-08-06 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction.
References
| ▼ | URL | Tags |
|---|---|---|
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2013/09/30/3 | mailing-list, x_refsource_MLIST | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html | vendor-advisory, x_refsource_SUSE |
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CVE-2024-2201 (GCVE-0-2024-2201)
Vulnerability from cvelistv5
Published
2024-12-19 20:28
Modified
2025-01-09 16:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A cross-privilege Spectre v2 vulnerability allows attackers to bypass all deployed mitigations, including the recent Fine(IBT), and to leak arbitrary Linux kernel memory on Intel systems.
References
Impacted products
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CVE-2023-34324 (GCVE-0-2023-34324)
Vulnerability from cvelistv5
Published
2024-01-05 16:30
Modified
2025-06-05 19:41
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Closing of an event channel in the Linux kernel can result in a deadlock.
This happens when the close is being performed in parallel to an unrelated
Xen console action and the handling of a Xen console interrupt in an
unprivileged guest.
The closing of an event channel is e.g. triggered by removal of a
paravirtual device on the other side. As this action will cause console
messages to be issued on the other side quite often, the chance of
triggering the deadlock is not neglectable.
Note that 32-bit Arm-guests are not affected, as the 32-bit Linux kernel
on Arm doesn't use queued-RW-locks, which are required to trigger the
issue (on Arm32 a waiting writer doesn't block further readers to get
the lock).
References
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CVE-2015-8550 (GCVE-0-2015-8550)
Vulnerability from cvelistv5
Published
2016-04-14 14:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/79592 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-155.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securitytracker.com/id/1034479 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2016/dsa-3471 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.debian.org/security/2016/dsa-3434 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html | vendor-advisory, x_refsource_SUSE |
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CVE-2018-15470 (GCVE-0-2018-15470)
Vulnerability from cvelistv5
Published
2018-08-17 17:00
Modified
2024-08-05 09:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-272.html | x_refsource_MISC |
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CVE-2015-8341 (GCVE-0-2015-8341)
Vulnerability from cvelistv5
Published
2015-12-17 19:00
Modified
2024-08-06 08:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service (memory and disk consumption) by starting domains.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://xenbits.xen.org/xsa/advisory-160.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1034389 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-42314 (GCVE-0-2022-42314)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-06 14:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
References
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CVE-2017-15596 (GCVE-0-2017-15596)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.4.x through 4.9.x allowing ARM guest OS users to cause a denial of service (prevent physical CPU usage) because of lock mishandling upon detection of an add-to-physmap error.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| https://xenbits.xen.org/xsa/advisory-235.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2014-3714 (GCVE-0-2014-3714)
Vulnerability from cvelistv5
Published
2014-05-19 14:00
Modified
2024-08-06 10:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The ARM image loading functionality in Xen 4.4.x does not properly validate kernel length, which allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit ARM guest kernel in an image, which triggers a buffer overflow.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-95.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1030252 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2014/05/14/4 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2014/05/16/1 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2014/05/15/6 | mailing-list, x_refsource_MLIST |
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CVE-2007-6416 (GCVE-0-2007-6416)
Vulnerability from cvelistv5
Published
2007-12-17 23:00
Modified
2024-08-07 16:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The copy_to_user function in the PAL emulation functionality for Xen 3.1.2 and earlier, when running on ia64 systems, allows HVM guest users to access arbitrary physical memory by triggering certain mapping operations.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/28643 | third-party-advisory, x_refsource_SECUNIA | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9840 | vdb-entry, signature, x_refsource_OVAL | |
| http://xenbits.xensource.com/ext/ia64/xen-unstable.hg?rev/e6069a715fd7 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/26954 | vdb-entry, x_refsource_BID | |
| http://secunia.com/advisories/28146 | third-party-advisory, x_refsource_SECUNIA | |
| http://osvdb.org/41344 | vdb-entry, x_refsource_OSVDB | |
| http://www.redhat.com/support/errata/RHSA-2008-0089.html | vendor-advisory, x_refsource_REDHAT |
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CVE-2015-8339 (GCVE-0-2015-8339)
Vulnerability from cvelistv5
Published
2015-12-17 19:00
Modified
2024-08-06 08:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly hand back pages to a domain, which might allow guest OS administrators to cause a denial of service (host crash) via unspecified vectors related to domain teardown.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://xenbits.xen.org/xsa/advisory-159.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1034391 | vdb-entry, x_refsource_SECTRACK | |
| http://support.citrix.com/article/CTX203451 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securityfocus.com/bid/79038 | vdb-entry, x_refsource_BID |
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CVE-2021-28713 (GCVE-0-2021-28713)
Vulnerability from cvelistv5
Published
2022-01-05 16:10
Modified
2024-08-03 21:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the ability to run PV backends in regular unprivileged guests, typically referred to as "driver domains". Running PV backends in driver domains has one primary security advantage: if a driver domain gets compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain could try to attack other guests via sending events at a high frequency leading to a Denial of Service in the guest due to trying to service interrupts for elongated amounts of time. There are three affected backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch 3, CVE-2021-28713
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-391.txt | x_refsource_MISC | |
| https://www.debian.org/security/2022/dsa-5050 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2022/dsa-5096 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2021-28700 (GCVE-0-2021-28700)
Vulnerability from cvelistv5
Published
2021-08-27 18:15
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-383.txt | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2021/dsa-4977 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202208-23 | vendor-advisory, x_refsource_GENTOO |
Impacted products
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CVE-2015-8553 (GCVE-0-2015-8553)
Vulnerability from cvelistv5
Published
2016-04-13 15:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-0777.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-120.html | x_refsource_CONFIRM | |
| https://seclists.org/bugtraq/2019/Aug/18 | mailing-list, x_refsource_BUGTRAQ | |
| https://www.debian.org/security/2019/dsa-4497 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2012-4537 (GCVE-0-2012-4537)
Vulnerability from cvelistv5
Published
2012-11-21 23:00
Modified
2024-08-06 20:42
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."
References
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CVE-2019-17346 (GCVE-0-2019-17346)
Vulnerability from cvelistv5
Published
2019-10-08 00:02
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-292.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-292.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/25/5 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2020-29571 (GCVE-0-2020-29571)
Vulnerability from cvelistv5
Published
2020-12-15 17:02
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-359.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2024-45818 (GCVE-0-2024-45818)
Vulnerability from cvelistv5
Published
2024-12-19 12:00
Modified
2024-12-31 19:01
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The hypervisor contains code to accelerate VGA memory accesses for HVM
guests, when the (virtual) VGA is in "standard" mode. Locking involved
there has an unusual discipline, leaving a lock acquired past the
return from the function that acquired it. This behavior results in a
problem when emulating an instruction with two memory accesses, both of
which touch VGA memory (plus some further constraints which aren't
relevant here). When emulating the 2nd access, the lock that is already
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discipline work.
In staging, this logic has all been removed because it was discovered
to be accidentally disabled since Xen 4.7. Therefore, we are fixing the
locking problem by backporting the removal of most of the feature. Note
that even with the feature disabled, the lock would still be acquired
for any accesses to the VGA MMIO region.
References
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CVE-2016-3961 (GCVE-0-2016-3961)
Vulnerability from cvelistv5
Published
2016-04-15 14:00
Modified
2024-08-06 00:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/xsa174.patch | x_refsource_CONFIRM | |
| http://www.ubuntu.com/usn/USN-3006-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.ubuntu.com/usn/USN-3004-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.ubuntu.com/usn/USN-3001-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://xenbits.xen.org/xsa/advisory-174.html | x_refsource_CONFIRM | |
| http://www.ubuntu.com/usn/USN-3005-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.securitytracker.com/id/1035569 | vdb-entry, x_refsource_SECTRACK | |
| http://www.ubuntu.com/usn/USN-3049-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.debian.org/security/2016/dsa-3607 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.ubuntu.com/usn/USN-3002-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.ubuntu.com/usn/USN-3050-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.ubuntu.com/usn/USN-3007-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.ubuntu.com/usn/USN-3003-1 | vendor-advisory, x_refsource_UBUNTU | |
| http://www.securityfocus.com/bid/86068 | vdb-entry, x_refsource_BID |
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CVE-2016-1570 (GCVE-0-2016-1570)
Vulnerability from cvelistv5
Published
2016-01-22 15:00
Modified
2024-08-05 23:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1034744 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-167.html | x_refsource_CONFIRM |
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CVE-2018-15468 (GCVE-0-2018-15468)
Vulnerability from cvelistv5
Published
2018-08-17 17:00
Modified
2024-08-05 09:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x. The DEBUGCTL MSR contains several debugging features, some of which virtualise cleanly, but some do not. In particular, Branch Trace Store is not virtualised by the processor, and software has to be careful to configure it suitably not to lock up the core. As a result, it must only be available to fully trusted guests. Unfortunately, in the case that vPMU is disabled, all value checking was skipped, allowing the guest to choose any MSR_DEBUGCTL setting it likes. A malicious or buggy guest administrator (on Intel x86 HVM or PVH) can lock up the entire host, causing a Denial of Service.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-269.html | x_refsource_MISC | |
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2016-1571 (GCVE-0-2016-1571)
Vulnerability from cvelistv5
Published
2016-01-22 15:00
Modified
2024-08-05 23:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1034745 | vdb-entry, x_refsource_SECTRACK | |
| http://support.citrix.com/article/CTX205496 | x_refsource_CONFIRM | |
| http://xenbits.xen.org/xsa/advisory-168.html | x_refsource_CONFIRM |
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CVE-2024-45819 (GCVE-0-2024-45819)
Vulnerability from cvelistv5
Published
2024-12-19 12:00
Modified
2024-12-31 18:57
Severity ?
VLAI Severity ?
EPSS score ?
Summary
PVH guests have their ACPI tables constructed by the toolstack. The
construction involves building the tables in local memory, which are
then copied into guest memory. While actually used parts of the local
memory are filled in correctly, excess space that is being allocated is
left with its prior contents.
References
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CVE-2015-8615 (GCVE-0-2015-8615)
Vulnerability from cvelistv5
Published
2016-01-08 19:00
Modified
2024-08-06 08:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ).
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-169.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/79644 | vdb-entry, x_refsource_BID | |
| http://www.securitytracker.com/id/1034512 | vdb-entry, x_refsource_SECTRACK |
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CVE-2014-9066 (GCVE-0-2014-9066)
Vulnerability from cvelistv5
Published
2014-12-09 22:52
Modified
2024-08-06 13:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-114.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/71546 | vdb-entry, x_refsource_BID | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/12/08/4 | mailing-list, x_refsource_MLIST |
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CVE-2019-18425 (GCVE-0-2019-18425)
Vulnerability from cvelistv5
Published
2019-10-31 13:39
Modified
2024-08-05 01:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing 32-bit PV guest OS users to gain guest OS privileges by installing and using descriptors. There is missing descriptor table limit checking in x86 PV emulation. When emulating certain PV guest operations, descriptor table accesses are performed by the emulating code. Such accesses should respect the guest specified limits, unless otherwise guaranteed to fail in such a case. Without this, emulation of 32-bit guest user mode calls through call gates would allow guest user mode to install and then use descriptors of their choice, as long as the guest kernel did not itself install an LDT. (Most OSes don't install any LDT by default). 32-bit PV guest user mode can elevate its privileges to that of the guest kernel. Xen versions from at least 3.2 onwards are affected. Only 32-bit PV guest user mode can leverage this vulnerability. HVM, PVH, as well as 64-bit PV guests cannot leverage this vulnerability. Arm systems are unaffected.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-298.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/31/2 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00037.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2BQKX7M2RHCWDBKNPX4KEBI3MJIH6AYZ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2014-8595 (GCVE-0-2014-8595)
Vulnerability from cvelistv5
Published
2014-11-19 18:00
Modified
2024-08-06 13:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/62672 | third-party-advisory, x_refsource_SECUNIA | |
| http://support.citrix.com/article/CTX201794 | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX200288 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisory, x_refsource_DEBIAN | |
| http://secunia.com/advisories/62537 | third-party-advisory, x_refsource_SECUNIA | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securityfocus.com/bid/71151 | vdb-entry, x_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-110.html | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/98768 | vdb-entry, x_refsource_XF |
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CVE-2013-4329 (GCVE-0-2013-4329)
Vulnerability from cvelistv5
Published
2013-09-12 18:00
Modified
2024-08-06 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The xenlight library (libxl) in Xen 4.0.x through 4.2.x, when IOMMU is disabled, provides access to a busmastering-capable PCI passthrough device before the IOMMU setup is complete, which allows local HVM guest domains to gain privileges or cause a denial of service via a DMA instruction.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2013/09/10/4 | mailing-list, x_refsource_MLIST | |
| http://lists.xen.org/archives/html/xen-devel/2013-07/msg00066.html | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2023-34326 (GCVE-0-2023-34326)
Vulnerability from cvelistv5
Published
2024-01-05 16:30
Modified
2025-06-18 15:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The caching invalidation guidelines from the AMD-Vi specification (48882—Rev
3.07-PUB—Oct 2022) is incorrect on some hardware, as devices will malfunction
(see stale DMA mappings) if some fields of the DTE are updated but the IOMMU
TLB is not flushed.
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References
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CVE-2023-34319 (GCVE-0-2023-34319)
Vulnerability from cvelistv5
Published
2023-09-22 13:34
Modified
2025-06-18 14:26
Severity ?
VLAI Severity ?
EPSS score ?
Summary
The fix for XSA-423 added logic to Linux'es netback driver to deal with
a frontend splitting a packet in a way such that not all of the headers
would come in one piece. Unfortunately the logic introduced there
didn't account for the extreme case of the entire packet being split
into as many pieces as permitted by the protocol, yet still being
smaller than the area that's specially dealt with to keep all (possible)
headers together. Such an unusual packet would therefore trigger a
buffer overrun in the driver.
References
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"value": "The fix for XSA-423 added logic to Linux\u0027es netback driver to deal with\na frontend splitting a packet in a way such that not all of the headers\nwould come in one piece. Unfortunately the logic introduced there\ndidn\u0027t account for the extreme case of the entire packet being split\ninto as many pieces as permitted by the protocol, yet still being\nsmaller than the area that\u0027s specially dealt with to keep all (possible)\nheaders together. Such an unusual packet would therefore trigger a\nbuffer overrun in the driver."
}
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}
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CVE-2023-46837 (GCVE-0-2023-46837)
Vulnerability from cvelistv5
Published
2024-01-05 16:36
Modified
2025-06-16 19:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Arm provides multiple helpers to clean & invalidate the cache
for a given region. This is, for instance, used when allocating
guest memory to ensure any writes (such as the ones during scrubbing)
have reached memory before handing over the page to a guest.
Unfortunately, the arithmetics in the helpers can overflow and would
then result to skip the cache cleaning/invalidation. Therefore there
is no guarantee when all the writes will reach the memory.
This undefined behavior was meant to be addressed by XSA-437, but the
approach was not sufficient.
References
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CVE-2017-10913 (GCVE-0-2017-10913)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 bug 1.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1038722 | vdb-entry, x_refsource_SECTRACK | |
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/99411 | vdb-entry, x_refsource_BID | |
| https://xenbits.xen.org/xsa/advisory-218.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201710-17 | vendor-advisory, x_refsource_GENTOO |
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CVE-2013-0152 (GCVE-0-2013-0152)
Vulnerability from cvelistv5
Published
2013-02-13 01:00
Modified
2024-08-06 14:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Memory leak in Xen 4.2 and unstable allows local HVM guests to cause a denial of service (host memory consumption) by performing nested virtualization in a way that triggers errors that are not properly handled.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securitytracker.com/id/1028032 | vdb-entry, x_refsource_SECTRACK | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/01/23/8 | mailing-list, x_refsource_MLIST |
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CVE-2015-4163 (GCVE-0-2015-4163)
Vulnerability from cvelistv5
Published
2015-06-15 15:00
Modified
2024-08-06 06:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
References
| ▼ | URL | Tags |
|---|---|---|
| https://support.citrix.com/article/CTX206006 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3286 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/75141 | vdb-entry, x_refsource_BID | |
| http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html | vendor-advisory, x_refsource_SUSE | |
| http://support.citrix.com/article/CTX201145 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html | vendor-advisory, x_refsource_SUSE | |
| http://xenbits.xen.org/xsa/advisory-134.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1032568 | vdb-entry, x_refsource_SECTRACK | |
| http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html | vendor-advisory, x_refsource_SUSE |
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CVE-2015-2756 (GCVE-0-2015-2756)
Vulnerability from cvelistv5
Published
2015-04-01 14:00
Modified
2024-08-06 05:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response.
References
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CVE-2018-12891 (GCVE-0-2018-12891)
Vulnerability from cvelistv5
Published
2018-07-02 17:00
Modified
2024-08-05 08:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.10.x. Certain PV MMU operations may take a long time to process. For that reason Xen explicitly checks for the need to preempt the current vCPU at certain points. A few rarely taken code paths did bypass such checks. By suitably enforcing the conditions through its own page table contents, a malicious guest may cause such bypasses to be used for an unbounded number of iterations. A malicious or buggy PV guest may cause a Denial of Service (DoS) affecting the entire host. Specifically, it may prevent use of a physical CPU for an indeterminate period of time. All Xen versions from 3.4 onwards are vulnerable. Xen versions 3.3 and earlier are vulnerable to an even wider class of attacks, due to them lacking preemption checks altogether in the affected code paths. Only x86 systems are affected. ARM systems are not affected. Only multi-vCPU x86 PV guests can leverage the vulnerability. x86 HVM or PVH guests as well as x86 single-vCPU PV ones cannot leverage the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.debian.org/security/2018/dsa-4236 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX235748 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-264.html | x_refsource_CONFIRM | |
| http://www.securitytracker.com/id/1041201 | vdb-entry, x_refsource_SECTRACK | |
| http://www.openwall.com/lists/oss-security/2018/06/27/10 | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/104570 | vdb-entry, x_refsource_BID |
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CVE-2015-7812 (GCVE-0-2015-7812)
Vulnerability from cvelistv5
Published
2015-11-17 15:00
Modified
2024-08-06 07:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securitytracker.com/id/1034031 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-145.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2021-26314 (GCVE-0-2021-26314)
Vulnerability from cvelistv5
Published
2021-06-09 11:23
Modified
2024-09-17 02:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-208 - Information Exposure Through Timing Discrepancy
Summary
Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage.
References
| ▼ | URL | Tags |
|---|---|---|
| https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003 | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2021/06/09/2 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2021/06/10/1 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ | vendor-advisory, x_refsource_FEDORA |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| AMD | All supported processors |
Version: unspecified < undefined |
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CVE-2016-2271 (GCVE-0-2016-2271)
Vulnerability from cvelistv5
Published
2016-02-19 16:00
Modified
2024-08-05 23:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securitytracker.com/id/1035043 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-170.html | x_refsource_CONFIRM | |
| http://support.citrix.com/article/CTX209443 | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201604-03 | vendor-advisory, x_refsource_GENTOO |
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CVE-2019-17347 (GCVE-0-2019-17347)
Vulnerability from cvelistv5
Published
2019-10-08 00:02
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because a guest can manipulate its virtualised %cr4 in a way that is incompatible with Linux (and possibly other guest kernels).
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-293.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-293.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/25/8 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2015-2044 (GCVE-0-2015-2044)
Vulnerability from cvelistv5
Published
2015-03-12 14:00
Modified
2024-08-06 05:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The emulation routines for unspecified X86 devices in Xen 3.2.x through 4.5.x does not properly initialize data, which allow local HVM guest users to obtain sensitive information via vectors involving an unsupported access size.
References
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CVE-2020-15567 (GCVE-0-2020-15567)
Vulnerability from cvelistv5
Published
2020-07-07 12:26
Modified
2024-08-04 13:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification of a live EPT PTE. When mapping guest EPT (nested paging) tables, Xen would in some circumstances use a series of non-atomic bitfield writes. Depending on the compiler version and optimisation flags, Xen might expose a dangerous partially written PTE to the hardware, which an attacker might be able to race to exploit. A guest administrator or perhaps even an unprivileged guest user might be able to cause denial of service, data corruption, or privilege escalation. Only systems using Intel CPUs are vulnerable. Systems using AMD CPUs, and Arm systems, are not vulnerable. Only systems using nested paging (hap, aka nested paging, aka in this case Intel EPT) are vulnerable. Only HVM and PVH guests can exploit the vulnerability. The presence and scope of the vulnerability depends on the precise optimisations performed by the compiler used to build Xen. If the compiler generates (a) a single 64-bit write, or (b) a series of read-modify-write operations in the same order as the source code, the hypervisor is not vulnerable. For example, in one test build using GCC 8.3 with normal settings, the compiler generated multiple (unlocked) read-modify-write operations in source-code order, which did not constitute a vulnerability. We have not been able to survey compilers; consequently we cannot say which compiler(s) might produce vulnerable code (with which code-generation options). The source code clearly violates the C rules, and thus should be considered vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-328.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2020/07/07/6 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VB3QJJZV23Z2IDYEMIHELWYSQBUEW6JP/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXESCOVI7AVRNC7HEAMFM7PMEO6D3AUH/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202007-02 | vendor-advisory, x_refsource_GENTOO |
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CVE-2022-42320 (GCVE-0-2022-42320)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2024-11-20 14:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: Guests can get access to Xenstore nodes of deleted domains Access rights of Xenstore nodes are per domid. When a domain is gone, there might be Xenstore nodes left with access rights containing the domid of the removed domain. This is normally no problem, as those access right entries will be corrected when such a node is written later. There is a small time window when a new domain is created, where the access rights of a past domain with the same domid as the new one will be regarded to be still valid, leading to the new domain being able to get access to a node which was meant to be accessible by the removed domain. For this to happen another domain needs to write the node before the newly created domain is being introduced to Xenstore by dom0.
References
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CVE-2012-3497 (GCVE-0-2012-3497)
Vulnerability from cvelistv5
Published
2012-11-23 20:00
Modified
2024-08-06 20:05
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
(1) TMEMC_SAVE_GET_CLIENT_WEIGHT, (2) TMEMC_SAVE_GET_CLIENT_CAP, (3) TMEMC_SAVE_GET_CLIENT_FLAGS and (4) TMEMC_SAVE_END in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (NULL pointer dereference or memory corruption and host crash) or possibly have other unspecified impacts via a NULL client id.
References
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CVE-2012-6333 (GCVE-0-2012-6333)
Vulnerability from cvelistv5
Published
2012-12-13 11:00
Modified
2024-08-06 21:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple HVM control operations in Xen 3.4 through 4.2 allow local HVM guest OS administrators to cause a denial of service (physical CPU consumption) via a large input.
References
| ▼ | URL | Tags |
|---|---|---|
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.openwall.com/lists/oss-security/2012/12/03/10 | mailing-list, x_refsource_MLIST | |
| http://www.securityfocus.com/bid/56796 | vdb-entry, x_refsource_BID | |
| http://support.citrix.com/article/CTX135777 | x_refsource_CONFIRM | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://secunia.com/advisories/51397 | third-party-advisory, x_refsource_SECUNIA | |
| http://secunia.com/advisories/51486 | third-party-advisory, x_refsource_SECUNIA | |
| http://secunia.com/advisories/51487 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.osvdb.org/88129 | vdb-entry, x_refsource_OSVDB | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html | vendor-advisory, x_refsource_SUSE | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80484 | vdb-entry, x_refsource_XF |
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CVE-2022-23039 (GCVE-0-2022-23039)
Vulnerability from cvelistv5
Published
2022-03-10 19:20
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| unspecified | unspecified |
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CVE-2022-42317 (GCVE-0-2022-42317)
Vulnerability from cvelistv5
Published
2022-11-01 00:00
Modified
2025-05-05 19:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Xenstore: guests can let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction
References
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CVE-2022-42335 (GCVE-0-2022-42335)
Vulnerability from cvelistv5
Published
2023-04-25 00:00
Modified
2024-08-03 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
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CVE-2020-15852 (GCVE-0-2020-15852)
Vulnerability from cvelistv5
Published
2020-07-20 18:54
Modified
2024-08-04 13:30
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-329.html | x_refsource_MISC | |
| https://github.com/torvalds/linux/commit/cadfad870154e14f745ec845708bc17d166065f2 | x_refsource_MISC | |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cadfad870154e14f745ec845708bc17d166065f2 | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2020/07/21/2 | mailing-list, x_refsource_MLIST | |
| https://security.netapp.com/advisory/ntap-20200810-0001/ | x_refsource_CONFIRM |
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CVE-2016-3157 (GCVE-0-2016-3157)
Vulnerability from cvelistv5
Published
2016-04-12 16:00
Modified
2024-08-05 23:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
References
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CVE-2022-21166 (GCVE-0-2022-21166)
Vulnerability from cvelistv5
Published
2022-06-15 20:03
Modified
2025-05-05 16:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- information disclosure
Summary
Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Intel(R) Processors |
Version: See references |
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CVE-2014-3969 (GCVE-0-2014-3969)
Vulnerability from cvelistv5
Published
2014-06-05 20:00
Modified
2024-08-06 10:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.4.x, when running on an ARM system, does not properly check write permissions on virtual addresses, which allows local guest administrators to gain privileges via unspecified vectors.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1030333 | vdb-entry, x_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-98.html | x_refsource_CONFIRM | |
| http://secunia.com/advisories/58975 | third-party-advisory, x_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/67819 | vdb-entry, x_refsource_BID | |
| http://www.openwall.com/lists/oss-security/2014/06/04/14 | mailing-list, x_refsource_MLIST |
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CVE-2015-2751 (GCVE-0-2015-2751)
Vulnerability from cvelistv5
Published
2015-04-01 14:00
Modified
2024-08-06 05:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.3.x, 4.4.x, and 4.5.x, when using toolstack disaggregation, allows remote domains with partial management control to cause a denial of service (host lock) via unspecified domctl operations.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201504-04 | vendor-advisory, x_refsource_GENTOO | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html | vendor-advisory, x_refsource_SUSE | |
| http://www.securitytracker.com/id/1031997 | vdb-entry, x_refsource_SECTRACK | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html | vendor-advisory, x_refsource_FEDORA | |
| http://www.securityfocus.com/bid/73443 | vdb-entry, x_refsource_BID | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html | vendor-advisory, x_refsource_FEDORA | |
| http://xenbits.xen.org/xsa/advisory-127.html | x_refsource_CONFIRM |
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CVE-2014-1892 (GCVE-0-2014-1892)
Vulnerability from cvelistv5
Published
2014-04-01 01:00
Modified
2024-08-06 09:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 3.3 through 4.1, when XSM is enabled, allows local users to cause a denial of service via vectors related to a "large memory allocation," a different vulnerability than CVE-2014-1891, CVE-2014-1893, and CVE-2014-1894.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/10/8 | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-84.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2014/02/07/4 | mailing-list, x_refsource_MLIST | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html | vendor-advisory, x_refsource_SUSE | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.openwall.com/lists/oss-security/2014/02/07/12 | mailing-list, x_refsource_MLIST |
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CVE-2018-15469 (GCVE-0-2018-15469)
Vulnerability from cvelistv5
Published
2018-08-17 17:00
Modified
2024-08-05 09:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201810-06 | vendor-advisory, x_refsource_GENTOO | |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-268.html | x_refsource_MISC |
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CVE-2020-29567 (GCVE-0-2020-29567)
Vulnerability from cvelistv5
Published
2020-12-15 16:50
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen 4.14.x. When moving IRQs between CPUs to distribute the load of IRQ handling, IRQ vectors are dynamically allocated and de-allocated on the relevant CPUs. De-allocation has to happen when certain constraints are met. If these conditions are not met when first checked, the checking CPU may send an interrupt to itself, in the expectation that this IRQ will be delivered only after the condition preventing the cleanup has cleared. For two specific IRQ vectors, this expectation was violated, resulting in a continuous stream of self-interrupts, which renders the CPU effectively unusable. A domain with a passed through PCI device can cause lockup of a physical CPU, resulting in a Denial of Service (DoS) to the entire host. Only x86 systems are vulnerable. Arm systems are not vulnerable. Only guests with physical PCI devices passed through to them can exploit the vulnerability.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-356.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2023-46839 (GCVE-0-2023-46839)
Vulnerability from cvelistv5
Published
2024-03-20 10:35
Modified
2024-11-21 19:17
Severity ?
VLAI Severity ?
EPSS score ?
Summary
PCI devices can make use of a functionality called phantom functions,
that when enabled allows the device to generate requests using the IDs
of functions that are otherwise unpopulated. This allows a device to
extend the number of outstanding requests.
Such phantom functions need an IOMMU context setup, but failure to
setup the context is not fatal when the device is assigned. Not
failing device assignment when such failure happens can lead to the
primary device being assigned to a guest, while some of the phantom
functions are assigned to a different domain.
References
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CVE-2020-25603 (GCVE-0-2020-25603)
Vulnerability from cvelistv5
Published
2020-09-23 21:34
Modified
2024-08-04 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. There are missing memory barriers when accessing/allocating an event channel. Event channels control structures can be accessed lockless as long as the port is considered to be valid. Such a sequence is missing an appropriate memory barrier (e.g., smp_*mb()) to prevent both the compiler and CPU from re-ordering access. A malicious guest may be able to cause a hypervisor crash resulting in a Denial of Service (DoS). Information leak and privilege escalation cannot be excluded. Systems running all versions of Xen are affected. Whether a system is vulnerable will depend on the CPU and compiler used to build Xen. For all systems, the presence and the scope of the vulnerability depend on the precise re-ordering performed by the compiler used to build Xen. We have not been able to survey compilers; consequently we cannot say which compiler(s) might produce vulnerable code (with which code generation options). GCC documentation clearly suggests that re-ordering is possible. Arm systems will also be vulnerable if the CPU is able to re-order memory access. Please consult your CPU vendor. x86 systems are only vulnerable if a compiler performs re-ordering.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-340.html | x_refsource_MISC | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JRXMKEMQRQYWYEPHVBIWUEAVQ3LU4FN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DA633Y3G5KX7MKRN4PFEGM3IVTJMBEOM/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4769 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00008.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJZERRBJN6E6STDCHT4JHP4MI6TKBCJE/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202011-06 | vendor-advisory, x_refsource_GENTOO |
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CVE-2020-11739 (GCVE-0-2020-11739)
Vulnerability from cvelistv5
Published
2020-04-14 12:17
Modified
2024-08-04 11:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to re-order the memory access with the preceding ones. In other words, the unlock may be seen by another processor before all the memory accesses within the "critical" section. As a consequence, it may be possible to have a writer executing a critical section at the same time as readers or another writer. In other words, many of the assumptions (e.g., a variable cannot be modified after a check) in the critical sections are not safe anymore. The read-write locks are used in hypercalls (such as grant-table ones), so a malicious guest could exploit the race. For instance, there is a small window where Xen can leak memory if XENMAPSPACE_grant_table is used concurrently. A malicious guest may be able to leak memory, or cause a hypervisor crash resulting in a Denial of Service (DoS). Information leak and privilege escalation cannot be excluded.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xen.org/xsa/advisory-314.html | x_refsource_MISC | |
| http://xenbits.xen.org/xsa/advisory-314.html | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2020/04/14/2 | mailing-list, x_refsource_MLIST | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YMAW7D2MP6RE4BFI5BZWOBBWGY3VSOFN/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5M2XRNCHOGGTJQBZQJ7DCV6ZNAKN3LE2/ | vendor-advisory, x_refsource_FEDORA | |
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00006.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVTP4OYHCTRU3ONFJOFJQVNDFB25KLLG/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202005-08 | vendor-advisory, x_refsource_GENTOO | |
| https://www.debian.org/security/2020/dsa-4723 | vendor-advisory, x_refsource_DEBIAN |
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CVE-2019-17340 (GCVE-0-2019-17340)
Vulnerability from cvelistv5
Published
2019-10-08 00:03
Modified
2024-08-05 01:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.11.x allowing x86 guest OS users to cause a denial of service or gain privileges because grant-table transfer requests are mishandled.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-284.html | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-284.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/25/1 | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ |
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CVE-2021-28707 (GCVE-0-2021-28707)
Vulnerability from cvelistv5
Published
2021-11-24 00:00
Modified
2024-08-03 21:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). The implementation of some of these hypercalls for PoD does not enforce the base page frame number to be suitably aligned for the specified order, yet some code involved in PoD handling actually makes such an assumption. These operations are XENMEM_decrease_reservation (CVE-2021-28704) and XENMEM_populate_physmap (CVE-2021-28707), the latter usable only by domains controlling the guest, i.e. a de-privileged qemu or a stub domain. (Patch 1, combining the fix to both these two issues.) In addition handling of XENMEM_decrease_reservation can also trigger a host crash when the specified page order is neither 4k nor 2M nor 1G (CVE-2021-28708, patch 2).
References
Impacted products
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CVE-2014-2599 (GCVE-0-2014-2599)
Vulnerability from cvelistv5
Published
2014-03-28 15:00
Modified
2024-08-06 10:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The HVMOP_set_mem_access HVM control operations in Xen 4.1.x for 32-bit and 4.1.x through 4.4.x for 64-bit allow local guest administrators to cause a denial of service (CPU consumption) by leveraging access to certain service domains for HVM guests and a large input.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2014/03/25/2 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html | vendor-advisory, x_refsource_SUSE | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2014/03/25/1 | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-89.html | x_refsource_CONFIRM | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1029956 | vdb-entry, x_refsource_SECTRACK | |
| http://www.securityfocus.com/bid/66407 | vdb-entry, x_refsource_BID |
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CVE-2017-10920 (GCVE-0-2017-10920)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1038734 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-224.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201710-17 | vendor-advisory, x_refsource_GENTOO |
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CVE-2023-34323 (GCVE-0-2023-34323)
Vulnerability from cvelistv5
Published
2024-01-05 16:30
Modified
2025-06-18 15:46
Severity ?
VLAI Severity ?
EPSS score ?
Summary
When a transaction is committed, C Xenstored will first check
the quota is correct before attempting to commit any nodes. It would
be possible that accounting is temporarily negative if a node has
been removed outside of the transaction.
Unfortunately, some versions of C Xenstored are assuming that the
quota cannot be negative and are using assert() to confirm it. This
will lead to C Xenstored crash when tools are built without -DNDEBUG
(this is the default).
References
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CVE-2013-1442 (GCVE-0-2013-1442)
Vulnerability from cvelistv5
Published
2013-09-30 19:00
Modified
2024-08-06 15:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen 4.0 through 4.3.x, when using AVX or LWP capable CPUs, does not properly clear previous data from registers when using an XSAVE or XRSTOR to extend the state components of a saved or restored vCPU after touching other restored extended registers, which allows local guest OSes to obtain sensitive information by reading the registers.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2013/09/25/2 | mailing-list, x_refsource_MLIST | |
| http://www.securitytracker.com/id/1029090 | vdb-entry, x_refsource_SECTRACK | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html | vendor-advisory, x_refsource_SUSE |
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CVE-2017-10921 (GCVE-0-2017-10921)
Vulnerability from cvelistv5
Published
2017-07-05 01:00
Modified
2024-08-05 17:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 2.
References
| ▼ | URL | Tags |
|---|---|---|
| https://security.gentoo.org/glsa/201708-03 | vendor-advisory, x_refsource_GENTOO | |
| http://www.debian.org/security/2017/dsa-3969 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1038734 | vdb-entry, x_refsource_SECTRACK | |
| https://xenbits.xen.org/xsa/advisory-224.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201710-17 | vendor-advisory, x_refsource_GENTOO |
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CVE-2015-2151 (GCVE-0-2015-2151)
Vulnerability from cvelistv5
Published
2015-03-12 14:00
Modified
2024-08-06 05:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.
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CVE-2019-18424 (GCVE-0-2019-18424)
Vulnerability from cvelistv5
Published
2019-10-31 13:38
Modified
2024-08-05 01:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.12.x allowing attackers to gain host OS privileges via DMA in a situation where an untrusted domain has access to a physical device. This occurs because passed through PCI devices may corrupt host memory after deassignment. When a PCI device is assigned to an untrusted domain, it is possible for that domain to program the device to DMA to an arbitrary address. The IOMMU is used to protect the host from malicious DMA by making sure that the device addresses can only target memory assigned to the guest. However, when the guest domain is torn down, or the device is deassigned, the device is assigned back to dom0, thus allowing any in-flight DMA to potentially target critical host data. An untrusted domain with access to a physical device can DMA into host memory, leading to privilege escalation. Only systems where guests are given direct access to physical devices capable of DMA (PCI pass-through) are vulnerable. Systems which do not use PCI pass-through are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| http://xenbits.xen.org/xsa/advisory-302.html | x_refsource_MISC | |
| http://www.openwall.com/lists/oss-security/2019/10/31/6 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00037.html | vendor-advisory, x_refsource_SUSE | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2BQKX7M2RHCWDBKNPX4KEBI3MJIH6AYZ/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/ | vendor-advisory, x_refsource_FEDORA | |
| https://www.debian.org/security/2020/dsa-4602 | vendor-advisory, x_refsource_DEBIAN | |
| https://seclists.org/bugtraq/2020/Jan/21 | mailing-list, x_refsource_BUGTRAQ | |
| https://security.gentoo.org/glsa/202003-56 | vendor-advisory, x_refsource_GENTOO |
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CVE-2017-14319 (GCVE-0-2017-14319)
Vulnerability from cvelistv5
Published
2017-09-12 15:00
Modified
2024-08-05 19:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
References
| ▼ | URL | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1039351 | vdb-entry, x_refsource_SECTRACK | |
| https://support.citrix.com/article/CTX227185 | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/100819 | vdb-entry, x_refsource_BID | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html | mailing-list, x_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-234.html | x_refsource_CONFIRM |
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CVE-2020-29486 (GCVE-0-2020-29486)
Vulnerability from cvelistv5
Published
2020-12-15 18:00
Modified
2024-08-04 16:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.14.x. Nodes in xenstore have an ownership. In oxenstored, a owner could give a node away. However, node ownership has quota implications. Any guest can run another guest out of quota, or create an unbounded number of nodes owned by dom0, thus running xenstored out of memory A malicious guest administrator can cause a denial of service against a specific guest or against the whole host. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-352.html | x_refsource_MISC | |
| https://www.debian.org/security/2020/dsa-4812 | vendor-advisory, x_refsource_DEBIAN | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/ | vendor-advisory, x_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/ | vendor-advisory, x_refsource_FEDORA | |
| https://security.gentoo.org/glsa/202107-30 | vendor-advisory, x_refsource_GENTOO |
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CVE-2011-1166 (GCVE-0-2011-1166)
Vulnerability from cvelistv5
Published
2014-01-07 19:00
Modified
2024-08-06 22:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables.
References
| ▼ | URL | Tags |
|---|---|---|
| http://wiki.xen.org/wiki/Security_Announcements#XSA-1_Host_crash_due_to_failure_to_correctly_validate_PV_kernel_execution_state. | x_refsource_CONFIRM | |
| http://rhn.redhat.com/errata/RHSA-2011-0833.html | vendor-advisory, x_refsource_REDHAT | |
| http://downloads.avaya.com/css/P8/documents/100145416 | x_refsource_CONFIRM |
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CVE-2013-4369 (GCVE-0-2013-4369)
Vulnerability from cvelistv5
Published
2013-10-17 23:00
Modified
2024-08-06 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The xlu_vif_parse_rate function in the libxlu library in Xen 4.2.x and 4.3.x allows local users to cause a denial of service (NULL pointer dereference) by using the "@" character as the VIF rate configuration.
References
| ▼ | URL | Tags |
|---|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilities/87798 | vdb-entry, x_refsource_XF | |
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/10/10/11 | mailing-list, x_refsource_MLIST |
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CVE-2017-15593 (GCVE-0-2017-15593)
Vulnerability from cvelistv5
Published
2017-10-18 08:00
Modified
2024-08-05 19:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An issue was discovered in Xen through 4.9.x allowing x86 PV guest OS users to cause a denial of service (memory leak) because reference counts are mishandled.
References
| ▼ | URL | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-list, x_refsource_MLIST | |
| https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html | mailing-list, x_refsource_MLIST | |
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisory, x_refsource_DEBIAN | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://xenbits.xen.org/xsa/advisory-242.html | x_refsource_CONFIRM | |
| https://security.gentoo.org/glsa/201801-14 | vendor-advisory, x_refsource_GENTOO | |
| http://www.securitytracker.com/id/1039568 | vdb-entry, x_refsource_SECTRACK |
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CVE-2022-23042 (GCVE-0-2022-23042)
Vulnerability from cvelistv5
Published
2022-03-10 19:20
Modified
2024-08-03 03:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. As a result the backend can keep access to the memory page even after it has been freed and then re-used for a different purpose. CVE-2022-23041 netfront will fail a BUG_ON() assertion if it fails to revoke access in the rx path. This will result in a Denial of Service (DoS) situation of the guest which can be triggered by the backend. CVE-2022-23042
References
| ▼ | URL | Tags |
|---|---|---|
| https://xenbits.xenproject.org/xsa/advisory-396.txt | x_refsource_MISC | |
| https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html | mailing-list, x_refsource_MLIST |
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| unspecified | unspecified |
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CVE-2013-2196 (GCVE-0-2013-2196)
Vulnerability from cvelistv5
Published
2013-08-23 16:00
Modified
2024-08-06 15:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Multiple unspecified vulnerabilities in the Elf parser (libelf) in Xen 4.2.x and earlier allow local guest administrators with certain permissions to have an unspecified impact via a crafted kernel, related to "other problems" that are not CVE-2013-2194 or CVE-2013-2195.
References
| ▼ | URL | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html | vendor-advisory, x_refsource_SUSE | |
| http://secunia.com/advisories/55082 | third-party-advisory, x_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisory, x_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/06/20/4 | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2013/06/20/2 | mailing-list, x_refsource_MLIST | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisory, x_refsource_SUSE | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisory, x_refsource_DEBIAN | |
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html | vendor-advisory, x_refsource_SUSE | |
| http://support.citrix.com/article/CTX138058 | x_refsource_CONFIRM |
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