Secunia Security Advisory – Red Hat has issued an update for xen. This fixes some vulnerabilities, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70569/sa32088.txt
Source: https://packetstormsecurity.com/files/70569/Secunia-Security-Advisory-32088.html