CVE-2014-7156

Name of the Vulnerable Software and Affected Versions Xen versions 3.3.x through 4.4.x

Description The issue is related to the x86 emulate function in Xen, which does not properly check supervisor mode permissions for certain instructions. This allows local HVM guest users to cause a denial of service, resulting in a guest crash, via unspecified vectors.

Recommendations For Xen versions 3.3.x through 4.4.x, consider restricting access to the x86 emulate function or applying configuration changes to minimize the risk of exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.