Secunia Security Advisory – Fedora has issued an update for xen. This fixes a vulnerability, which can be exploited by malicious, local users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/64168/sa29172.txt
Source: https://packetstormsecurity.com/files/64168/Secunia-Security-Advisory-29172.html