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CERTFR-2019-AVI-630
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Citrix Hypervisor. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance et un déni de service à distance.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
Vendor | Product | Description | ||
---|---|---|---|---|
Citrix | Citrix Hypervisor | Citrix XenServer version 7.0 sans le dernier correctif de sécurité | ||
Citrix | Citrix Hypervisor | Citrix Hypervisor (anciennement XenServer) version 8.0 sans le dernier correctif de sécurité | ||
Citrix | Citrix Hypervisor | Citrix XenServer version 7.1 LTSR CU2 sans le dernier correctif de sécurité | ||
Citrix | Citrix Hypervisor | Citrix XenServer version 7.6 sans le dernier correctif de sécurité |
References
Title | Publication Time | Tags | |||
---|---|---|---|---|---|
|
{ "$ref": "https://www.cert.ssi.gouv.fr/openapi.json", "affected_systems": [ { "description": "Citrix XenServer version 7.0 sans le dernier correctif de s\u00e9curit\u00e9", "product": { "name": "Citrix Hypervisor", "vendor": { "name": "Citrix", "scada": false } } }, { "description": "Citrix Hypervisor (anciennement XenServer) version 8.0 sans le dernier correctif de s\u00e9curit\u00e9", "product": { "name": "Citrix Hypervisor", "vendor": { "name": "Citrix", "scada": false } } }, { "description": "Citrix XenServer version 7.1 LTSR CU2 sans le dernier correctif de s\u00e9curit\u00e9", "product": { "name": "Citrix Hypervisor", "vendor": { "name": "Citrix", "scada": false } } }, { "description": "Citrix XenServer version 7.6 sans le dernier correctif de s\u00e9curit\u00e9", "product": { "name": "Citrix Hypervisor", "vendor": { "name": "Citrix", "scada": false } } } ], "affected_systems_content": null, "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n", "cves": [ { "name": "CVE-2019-19577", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19577" }, { "name": "CVE-2019-14607", "url": "https://www.cve.org/CVERecord?id=CVE-2019-14607" }, { "name": "CVE-2019-19580", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19580" }, { "name": "CVE-2019-19583", "url": "https://www.cve.org/CVERecord?id=CVE-2019-19583" } ], "initial_release_date": "2019-12-12T00:00:00", "last_revision_date": "2019-12-12T00:00:00", "links": [], "reference": "CERTFR-2019-AVI-630", "revisions": [ { "description": "Version initiale", "revision_date": "2019-12-12T00:00:00.000000" } ], "risks": [ { "description": "D\u00e9ni de service \u00e0 distance" }, { "description": "Ex\u00e9cution de code arbitraire \u00e0 distance" } ], "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Citrix Hypervisor.\nElles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code\narbitraire \u00e0 distance et un d\u00e9ni de service \u00e0 distance.\n", "title": "Multiples vuln\u00e9rabilit\u00e9s dans Citrix Hypervisor", "vendor_advisories": [ { "published_at": null, "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX266932 du 11 d\u00e9cembre 2019", "url": "https://support.citrix.com/article/CTX266932" } ] }
CVE-2019-19583 (GCVE-0-2019-19583)
Vulnerability from cvelistv5
Published
2019-12-11 16:48
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 HVM/PVH guest OS users to cause a denial of service (guest OS crash) because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for #DB interception. The VMX VMEntry checks do not like the exact combination of state which occurs when #DB in intercepted, Single Stepping is active, and blocked by STI/MovSS is active, despite this being a legitimate state to be in. The resulting VMEntry failure is fatal to the guest. HVM/PVH guest userspace code may be able to crash the guest, resulting in a guest Denial of Service. All versions of Xen are affected. Only systems supporting VMX hardware virtual extensions (Intel, Cyrix, or Zhaoxin CPUs) are affected. Arm and AMD systems are unaffected. Only HVM/PVH guests are affected. PV guests cannot leverage the vulnerability.
References
URL | Tags | ||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-05T02:16:48.334Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://xenbits.xen.org/xsa/advisory-308.html" }, { "name": "FEDORA-2019-6aad703290", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "tags": [ "vendor-advisory", "x_refsource_SUSE", "x_transferred" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "tags": [ "mailing-list", "x_refsource_BUGTRAQ", "x_transferred" ], "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "tags": [ "vendor-advisory", "x_refsource_GENTOO", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202003-56" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "An issue was discovered in Xen through 4.12.x allowing x86 HVM/PVH guest OS users to cause a denial of service (guest OS crash) because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for #DB interception. The VMX VMEntry checks do not like the exact combination of state which occurs when #DB in intercepted, Single Stepping is active, and blocked by STI/MovSS is active, despite this being a legitimate state to be in. The resulting VMEntry failure is fatal to the guest. HVM/PVH guest userspace code may be able to crash the guest, resulting in a guest Denial of Service. All versions of Xen are affected. Only systems supporting VMX hardware virtual extensions (Intel, Cyrix, or Zhaoxin CPUs) are affected. Arm and AMD systems are unaffected. Only HVM/PVH guests are affected. PV guests cannot leverage the vulnerability." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2020-03-26T14:06:16", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://xenbits.xen.org/xsa/advisory-308.html" }, { "name": "FEDORA-2019-6aad703290", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "tags": [ "vendor-advisory", "x_refsource_SUSE" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "tags": [ "mailing-list", "x_refsource_BUGTRAQ" ], "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202003-56" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-19583", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An issue was discovered in Xen through 4.12.x allowing x86 HVM/PVH guest OS users to cause a denial of service (guest OS crash) because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for #DB interception. The VMX VMEntry checks do not like the exact combination of state which occurs when #DB in intercepted, Single Stepping is active, and blocked by STI/MovSS is active, despite this being a legitimate state to be in. The resulting VMEntry failure is fatal to the guest. HVM/PVH guest userspace code may be able to crash the guest, resulting in a guest Denial of Service. All versions of Xen are affected. Only systems supporting VMX hardware virtual extensions (Intel, Cyrix, or Zhaoxin CPUs) are affected. Arm and AMD systems are unaffected. Only HVM/PVH guests are affected. PV guests cannot leverage the vulnerability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://xenbits.xen.org/xsa/advisory-308.html", "refsource": "MISC", "url": "https://xenbits.xen.org/xsa/advisory-308.html" }, { "name": "FEDORA-2019-6aad703290", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "refsource": "BUGTRAQ", "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202003-56" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-19583", "datePublished": "2019-12-11T16:48:26", "dateReserved": "2019-12-04T00:00:00", "dateUpdated": "2024-08-05T02:16:48.334Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
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 | ||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-05T02:16:48.295Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://xenbits.xen.org/xsa/advisory-310.html" }, { "name": "FEDORA-2019-6aad703290", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "tags": [ "vendor-advisory", "x_refsource_FEDORA", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "tags": [ "vendor-advisory", "x_refsource_SUSE", "x_transferred" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "tags": [ "vendor-advisory", "x_refsource_DEBIAN", "x_transferred" ], "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "tags": [ "mailing-list", "x_refsource_BUGTRAQ", "x_transferred" ], "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "tags": [ "vendor-advisory", "x_refsource_GENTOO", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202003-56" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2020-03-26T14:06:22", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://xenbits.xen.org/xsa/advisory-310.html" }, { "name": "FEDORA-2019-6aad703290", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "tags": [ "vendor-advisory", "x_refsource_FEDORA" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "tags": [ "vendor-advisory", "x_refsource_SUSE" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "tags": [ "mailing-list", "x_refsource_BUGTRAQ" ], "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202003-56" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2019-19580", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://xenbits.xen.org/xsa/advisory-310.html", "refsource": "MISC", "url": "https://xenbits.xen.org/xsa/advisory-310.html" }, { "name": "FEDORA-2019-6aad703290", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D5R73AYE53QA32KTMHUVKCX6E52CIS43/" }, { "name": "FEDORA-2019-2e12bd3a9a", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34HBFTYNMQMWIO2GGK7DB6KV4M6R5YPV/" }, { "name": "openSUSE-SU-2020:0011", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00011.html" }, { "name": "DSA-4602", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4602" }, { "name": "20200114 [SECURITY] [DSA 4602-1] xen security update", "refsource": "BUGTRAQ", "url": "https://seclists.org/bugtraq/2020/Jan/21" }, { "name": "GLSA-202003-56", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202003-56" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2019-19580", "datePublished": "2019-12-11T16:51:43", "dateReserved": "2019-12-04T00:00:00", "dateUpdated": "2024-08-05T02:16:48.295Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
CVE-2019-14607 (GCVE-0-2019-14607)
Vulnerability from cvelistv5
Published
2019-12-16 19:10
Modified
2024-08-05 00:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Escalation of Privilege, Denial of Service, Information Disclosure
Summary
Improper conditions check in multiple Intel® Processors may allow an authenticated user to potentially enable partial escalation of privilege, denial of service and/or information disclosure via local access.
References
URL | Tags | ||||||||||
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Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
n/a | Intel® Processors |
Version: See References |
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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
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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