The OLE2 parsing in Norman Antivirus before 5.91.02 allows remote attackers to cause a denial of service via a crafted DOC file that triggers a divide-by-zero error.
https://exchange.xforce.ibmcloud.com/vulnerabilities/35554
http://www.vupen.com/english/advisories/2007/2619
http://www.securitytracker.com/id?1018438
http://www.securityfocus.com/bid/25014
http://www.securityfocus.com/archive/1/474450/100/0/threaded
http://www.nruns.com/security_advisory_norton_antivirus_doc_divide_by_zero_dos.php
http://securityreason.com/securityalert/2914