CVE-2014-7156

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Summary

CVECVE-2014-7156
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-10-02 14:55:05 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 3.3 from [email protected]

AV:A/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:A/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen 3.3.0 All All All
Operating System Xen Xen 3.3.1 All All All
Operating System Xen Xen 3.3.2 All All All
Operating System Xen Xen 4.1.0 All All All
Operating System Xen Xen 4.1.1 All All All
Operating System Xen Xen 4.1.2 All All All
Operating System Xen Xen 4.1.3 All All All
Operating System Xen Xen 4.1.4 All All All
Operating System Xen Xen 4.1.5 All All All
Operating System Xen Xen 4.1.6.1 All All All
Operating System Xen Xen 4.2.0 All All All
Operating System Xen Xen 4.2.1 All All All
Operating System Xen Xen 4.2.2 All All All
Operating System Xen Xen 4.2.3 All All All
Operating System Xen Xen 4.3.0 All All All
Operating System Xen Xen 4.3.1 All All All
Operating System Xen Xen 4.4.0 All All All
Operating System Xen Xen 4.4.0 rc1 All All
Operating System Xen Xen 4.4.1 - All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Security Advisory SA61500 - Xen Protected Mode Software Interrupts Emulation Denial of Service Vulnerability - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
[security-announce] openSUSE-SU-2014:1281-1: important: xen: security an af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Xen: Denial of Service (GLSA 201412-42) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Citrix XenServer Multiple Security Updates af854a3a-2127-422b-91ae-364da2661108 support.citrix.com
[SECURITY] Fedora 20 Update: xen-4.3.3-3.fc20 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Debian -- Security Information -- DSA-3041-1 xen af854a3a-2127-422b-91ae-364da2661108 www.debian.org
Xen Supervisor Mode Permission Checks Local Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Advisory SA61890 - Gentoo update for xen - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Xen x86 Emulation Error Lets Local Guest System Users Deny Service on the Host System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
[security-announce] openSUSE-SU-2014:1279-1: important: xen: security an af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[SECURITY] Fedora 19 Update: xen-4.2.5-3.fc19 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
XSA-106 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Patch, Vendor Advisory
Security Advisory SA61858 - Citrix XenServer Multiple Vulnerabilities - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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