Secunia Security Advisory – Some vulnerabilities have been reported in X.org X11, which can be exploited by malicious, local users to cause a DoS (Denial of Service), disclose potentially sensitive information, or to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/67261/sa30627.txt
Source: https://packetstormsecurity.com/files/67261/Secunia-Security-Advisory-30627.html