(RHSA-2006:0451) xorg-x11 security update

X.org is an open source implementation of the X Window System. It provides
the basic low-level functionality that full-fledged graphical user
interfaces such as GNOME and KDE are designed upon.

A buffer overflow flaw in the X.org server RENDER extension was discovered.
A malicious authorized client could exploit this issue to cause a denial of
service (crash) or potentially execute arbitrary code with root privileges
on the X.org server. (CVE-2006-1526)

Users of X.org should upgrade to these updated packages, which contain a
backported patch and is not vulnerable to this issue.

This issue does not affect Red Hat Enterprise Linux 2.1 or 3.