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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html ↗
- http://xenbits.xen.org/xsa/advisory-106.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html ↗
- http://support.citrix.com/article/CTX200218 ↗
- http://www.securityfocus.com/bid/70062 ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html ↗
- http://www.securitytracker.com/id/1030889 ↗
- http://www.debian.org/security/2014/dsa-3041 ↗
- http://secunia.com/advisories/61858 ↗
- http://secunia.com/advisories/61890 ↗
- http://secunia.com/advisories/61500 ↗
- http://security.gentoo.org/glsa/glsa-201412-42.xml ↗