Secunia Security Advisory – Red Hat has issued an update for xorg-x11. This fixes some vulnerabilities, which can be exploited by malicious, local users to cause a DoS (Denial of Service), disclose potentially sensitive information, or gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/62785/sa28536.txt
Source: https://packetstormsecurity.com/files/62785/Secunia-Security-Advisory-28536.html