CVE-2012-2934 Information

Description

Xen 4.0 and 4.1 when running a 64-bit PV guest on \older\ AMD CPUs does not properly protect against a certain AMD processor bug which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary a different vulnerability than CVE-2012-0217.

Reference

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html http://lists.xen.org/archives/html/xen-announce/2012-06/msg00002.html http://secunia.com/advisories/51413 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://support.amd.com/us/Processor_TechDocs/25759.pdf http://www.debian.org/security/2012/dsa-2501 http://www.securityfocus.com/bid/53961