PT-2012-4761

Name of the Vulnerable Software and Affected Versions Xen versions 4.0 through 4.2 Citrix XenServer version 6.0.2 and earlier Description The issue allows local PV OS guest kernels to cause a denial of service, resulting in a host crash, by triggering a BUG when invalid flags such as MEMF populat...

XENMEM_populate_physmap DoS vulnerability

ISSUE DESCRIPTION XENMEMpopulatephysmap can be called with invalid flags. By calling it with MEMFpopulateondemand flag set, a BUG can be triggered if a translating paging mode is not being used. IMPACT A malicious guest kernel can crash the host. VULNERABLE SYSTEMS All Xen systems running PV...