Updated X.org packages that fix a security issue are now available for Red
Hat Enterprise Linux 4.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
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.