An input validation flaw was found in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server
memory, resulting in the disclosure of sensitive data of other users
of the X.org server (CVE-2008-1379).

Multiple integer overflows were found in X.org's Render extension.
A malicious authorized client could explot these issues to cause a
denial of service (crash) or possibly execute arbitrary code with
root privileges on the X.org server (CVE-2008-2360, CVE-2008-2361,
CVE-2008-2362).

The Metisse program is likewise affected by these issues; the updated
packages have been patched to prevent them.