CVE-2014-7156

Xen 3.3.x-4.4.x - Denial of Service via Software Interrupt Instructions

Title source: llm
STIX 2.1

Description

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 (13)

Core 13
Core References
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-106.html
Vendor Advisory x_refsource_confirm
http://support.citrix.com/article/CTX200218
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/70062
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1030889
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2014/dsa-3041
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/61858
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/61890
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/61500
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201412-42.xml

Scores

EPSS 0.0080
EPSS Percentile 74.3%

Details

CWE
CWE-264
Status published
Products (18)
xen/xen 3.3.0
xen/xen 3.3.1
xen/xen 3.3.2
xen/xen 4.1.0
xen/xen 4.1.1
xen/xen 4.1.2
xen/xen 4.1.3
xen/xen 4.1.4
xen/xen 4.1.5
xen/xen 4.1.6.1
... and 8 more
Published Oct 02, 2014
Tracked Since Feb 18, 2026