CVE-2014-7156

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

http://xenbits.xen.org/xsa/advisory-106.html

http://www.securitytracker.com/id/1030889

http://www.securityfocus.com/bid/70062

http://www.debian.org/security/2014/dsa-3041

http://support.citrix.com/article/CTX200218

http://security.gentoo.org/glsa/glsa-201412-42.xml

http://secunia.com/advisories/61890

http://secunia.com/advisories/61858

http://secunia.com/advisories/61500

http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3