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 are designed upon.
iDefense reported an integer overflow flaw in the X.org X11 server XC-MISC
extension. 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-2007-1003)
Users of the X.org X11 server should upgrade to these updated packages,
which contain a backported patch and is not vulnerable to this issue.