Updated XFree86 packages that fix a security issue are now available for Red
Hat Enterprise Linux 2.1 and 3.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
XFree86 is an implementation of the X Window System, which provides the
core functionality for the Linux graphical desktop.
iDefense reported two integer overflow flaws in the way the XFree86 server
processed CID font files. 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 XFree86 server. (CVE-2006-3739,
Users of XFree86 should upgrade to these updated packages, which contain a
backported patch and is not vulnerable to this issue.