CVE-2014-5146

Name of the Vulnerable Software and Affected Versions Xen versions 4.2.x through 4.4.x

Description The issue affects certain MMU virtualization operations in Xen when using Hardware Assisted Paging (HAP). These operations are not preemptible, allowing a local HVM guest to cause a denial of service by consuming vcpu resources. This can be achieved by invoking these operations, which process every page assigned to a guest.

Recommendations For Xen versions 4.2.x through 4.4.x, apply the xsa97-hap patch to resolve the issue.