Heads up, this one looks pretty serious, update ASAP.
http://www.vuxml.org/freebsd/7c920bb7-4b5f-11e1-9f47-00e0815b8da8.htm
More information:
http://seclists.org/fulldisclosure/2012/Jan/590
http://www.vuxml.org/freebsd/7c920bb7-4b5f-11e1-9f47-00e0815b8da8.htm
More information:
http://seclists.org/fulldisclosure/2012/Jan/590