Secunia Security Advisory – HP has issued an update for Xserver. This fixes a vulnerability, which can be exploited by malicious, local users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48801/sa21318.txt
Source: https://packetstormsecurity.com/files/48801/Secunia-Security-Advisory-21318.html