Provide references for CVE-2007-1239.
Where can I find more information about CVE-2007-1239?
References are available at: http://www.securityfocus.com/archive/1/461373/100/0/threaded, http://www.securityfocus.com/bid/22717, http://securityvulns.com/news/Microsoft/Excel/XML/DoS.html.