iDefense Security Advisory 06.11.08 – Local exploitation of multiple memory corruption vulnerabilities in the X.Org X server, as included in various vendors’ operating system distributions, could allow an attacker to execute arbitrary code with the privileges of the X server, typically root. iDefense has confirmed the existence of these vulnerabilities in X server 1.4 included with X.org X11R7.3, with all patches as of 03/01/08 applied. Previous versions may also be affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/67211/06.11.08-4.txt
Source: https://packetstormsecurity.com/files/67211/iDEFENSE-Security-Advisory-2008-06-11.4.html