suse-su-2019:0921-1
Vulnerability from csaf_suse
Published
2019-04-10 07:17
Modified
2019-04-10 07:17
Summary
Security update for xen
Notes
Title of the patch
Security update for xen
Description of the patch
This update for xen fixes the following issues:
Security issues fixed:
- Fixed an issue which could allow malicious PV guests may cause a host crash or
gain access to data pertaining to other guests.Additionally, vulnerable configurations
are likely to be unstable even in the absence of an attack (bsc#1126198).
- Fixed multiple access violations introduced by XENMEM_exchange hypercall which could allow
a single PV guest to leak arbitrary amounts of memory, leading to a denial of service (bsc#1126192).
- Fixed an issue which could allow a malicious unprivileged guest userspace process to escalate its privilege
to that of other userspace processes in the same guest and potentially thereby to that
of the guest operating system (bsc#1126201).
- Fixed an issue which could allow a malicious or buggy x86 PV guest kernels can mount a Denial of Service
attack affecting the whole system (bsc#1126196).
- Fixed an issue which could allow an untrusted PV domain with access to a physical device to DMA into its own
pagetables leading to privilege escalation (bsc#1126195).
- CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157).
- Fixed an issue which could allow malicious 64bit PV guests to cause a host crash (bsc#1127400).
- Fixed an issue which could allow malicious or buggy guests with passed through PCI devices to be able to
escalate their privileges, crash the host, or access data belonging to other guests. Additionally memory
leaks were also possible (bsc#1126140).
- Fixed a race condition issue which could allow malicious PV guests to escalate their privilege to that
of the hypervisor (bsc#1126141).
- CVE-2019-9824: Fixed an information leak in SLiRP networking implementation which could allow a user/process
to read uninitialised stack memory contents (bsc#1129623).
- CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host,
resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)
Other issue addressed:
- Added Xen cmdline option 'suse_vtsc_tolerance' to avoid TSC emulation for HVM domUs (bsc#1026236).
Patchnames
SUSE-2019-921,SUSE-OpenStack-Cloud-7-2019-921,SUSE-SLE-SAP-12-SP2-2019-921,SUSE-SLE-SERVER-12-SP2-2019-921,SUSE-SLE-SERVER-12-SP2-BCL-2019-921,SUSE-Storage-4-2019-921
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
{ "document": { "aggregate_severity": { "namespace": "https://www.suse.com/support/security/rating/", "text": "important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright 2024 SUSE LLC. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "Security update for xen", "title": "Title of the patch" }, { "category": "description", "text": "This update for xen fixes the following issues:\n\nSecurity issues fixed: \n\n- Fixed an issue which could allow malicious PV guests may cause a host crash or \n gain access to data pertaining to other guests.Additionally, vulnerable configurations \n are likely to be unstable even in the absence of an attack (bsc#1126198).\n- Fixed multiple access violations introduced by XENMEM_exchange hypercall which could allow \n a single PV guest to leak arbitrary amounts of memory, leading to a denial of service (bsc#1126192).\n- Fixed an issue which could allow a malicious unprivileged guest userspace process to escalate its privilege \n to that of other userspace processes in the same guest and potentially thereby to that \n of the guest operating system (bsc#1126201).\n- Fixed an issue which could allow a malicious or buggy x86 PV guest kernels can mount a Denial of Service\n attack affecting the whole system (bsc#1126196).\n- Fixed an issue which could allow an untrusted PV domain with access to a physical device to DMA into its own \n pagetables leading to privilege escalation (bsc#1126195).\n- CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157).\n- Fixed an issue which could allow malicious 64bit PV guests to cause a host crash (bsc#1127400).\n- Fixed an issue which could allow malicious or buggy guests with passed through PCI devices to be able to \n escalate their privileges, crash the host, or access data belonging to other guests. Additionally memory \n leaks were also possible (bsc#1126140).\n- Fixed a race condition issue which could allow malicious PV guests to escalate their privilege to that \n of the hypervisor (bsc#1126141).\n- CVE-2019-9824: Fixed an information leak in SLiRP networking implementation which could allow a user/process \n to read uninitialised stack memory contents (bsc#1129623).\n- CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host,\n resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988)\n\nOther issue addressed: \n\n- Added Xen cmdline option \u0027suse_vtsc_tolerance\u0027 to avoid TSC emulation for HVM domUs (bsc#1026236).\n", "title": "Description of the patch" }, { "category": "details", "text": "SUSE-2019-921,SUSE-OpenStack-Cloud-7-2019-921,SUSE-SLE-SAP-12-SP2-2019-921,SUSE-SLE-SERVER-12-SP2-2019-921,SUSE-SLE-SERVER-12-SP2-BCL-2019-921,SUSE-Storage-4-2019-921", "title": "Patchnames" }, { "category": "legal_disclaimer", "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).", "title": "Terms of use" } ], "publisher": { "category": "vendor", "contact_details": "https://www.suse.com/support/security/contact/", "name": "SUSE Product Security Team", "namespace": "https://www.suse.com/" }, "references": [ { "category": "external", "summary": "SUSE ratings", "url": "https://www.suse.com/support/security/rating/" }, { "category": "self", "summary": "URL of this CSAF notice", "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2019_0921-1.json" }, { "category": "self", "summary": "URL for SUSE-SU-2019:0921-1", "url": "https://www.suse.com/support/update/announcement/2019/suse-su-20190921-1/" }, { "category": "self", "summary": "E-Mail link for SUSE-SU-2019:0921-1", "url": "https://lists.suse.com/pipermail/sle-security-updates/2019-April/005320.html" }, { "category": "self", "summary": "SUSE Bug 1026236", "url": "https://bugzilla.suse.com/1026236" }, { "category": "self", "summary": "SUSE Bug 1114988", "url": "https://bugzilla.suse.com/1114988" }, { "category": "self", "summary": "SUSE Bug 1123157", "url": "https://bugzilla.suse.com/1123157" }, { "category": "self", "summary": "SUSE Bug 1126140", "url": "https://bugzilla.suse.com/1126140" }, { "category": "self", "summary": "SUSE Bug 1126141", "url": "https://bugzilla.suse.com/1126141" }, { "category": "self", "summary": "SUSE Bug 1126192", "url": "https://bugzilla.suse.com/1126192" }, { "category": "self", "summary": "SUSE Bug 1126195", "url": "https://bugzilla.suse.com/1126195" }, { "category": "self", "summary": "SUSE Bug 1126196", "url": "https://bugzilla.suse.com/1126196" }, { "category": "self", "summary": "SUSE Bug 1126198", "url": "https://bugzilla.suse.com/1126198" }, { "category": "self", "summary": "SUSE Bug 1126201", "url": "https://bugzilla.suse.com/1126201" }, { "category": "self", "summary": "SUSE Bug 1127400", "url": "https://bugzilla.suse.com/1127400" }, { "category": "self", "summary": "SUSE Bug 1129623", "url": "https://bugzilla.suse.com/1129623" }, { "category": "self", "summary": "SUSE CVE CVE-2018-19967 page", "url": "https://www.suse.com/security/cve/CVE-2018-19967/" }, { "category": "self", "summary": "SUSE CVE CVE-2019-6778 page", "url": "https://www.suse.com/security/cve/CVE-2019-6778/" }, { "category": "self", "summary": "SUSE CVE CVE-2019-9824 page", "url": "https://www.suse.com/security/cve/CVE-2019-9824/" } ], "title": "Security update for xen", 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"https://bugzilla.suse.com/1123157" }, { "category": "external", "summary": "SUSE Bug 1178658 for CVE-2019-6778", "url": "https://bugzilla.suse.com/1178658" } ], "remediations": [ { "category": "vendor_fix", "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n", "product_ids": [ "SUSE Enterprise Storage 4:xen-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-doc-html-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-libs-32bit-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-libs-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-tools-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-tools-domU-4.7.6_06-43.48.1.x86_64", "SUSE Linux Enterprise Server 12 SP2-BCL:xen-4.7.6_06-43.48.1.x86_64", "SUSE Linux Enterprise Server 12 SP2-BCL:xen-doc-html-4.7.6_06-43.48.1.x86_64", "SUSE Linux Enterprise Server 12 SP2-BCL:xen-libs-32bit-4.7.6_06-43.48.1.x86_64", "SUSE Linux 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"references": [ { "category": "external", "summary": "CVE-2019-9824", "url": "https://www.suse.com/security/cve/CVE-2019-9824" }, { "category": "external", "summary": "SUSE Bug 1118900 for CVE-2019-9824", "url": "https://bugzilla.suse.com/1118900" }, { "category": "external", "summary": "SUSE Bug 1129622 for CVE-2019-9824", "url": "https://bugzilla.suse.com/1129622" }, { "category": "external", "summary": "SUSE Bug 1129623 for CVE-2019-9824", "url": "https://bugzilla.suse.com/1129623" }, { "category": "external", "summary": "SUSE Bug 1178658 for CVE-2019-9824", "url": "https://bugzilla.suse.com/1178658" } ], "remediations": [ { "category": "vendor_fix", "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n", "product_ids": [ "SUSE Enterprise Storage 4:xen-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 4:xen-doc-html-4.7.6_06-43.48.1.x86_64", "SUSE Enterprise Storage 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Applications 12 SP2:xen-libs-4.7.6_06-43.48.1.x86_64", "SUSE Linux Enterprise Server for SAP Applications 12 SP2:xen-tools-4.7.6_06-43.48.1.x86_64", "SUSE Linux Enterprise Server for SAP Applications 12 SP2:xen-tools-domU-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-doc-html-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-libs-32bit-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-libs-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-tools-4.7.6_06-43.48.1.x86_64", "SUSE OpenStack Cloud 7:xen-tools-domU-4.7.6_06-43.48.1.x86_64" ] } ], "threats": [ { "category": "impact", "date": "2019-04-10T07:17:50Z", "details": "low" } ], "title": "CVE-2019-9824" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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