McAfee Network Agent (mcnasvc.exe) 1.0.178.0, as used by multiple McAfee products possibly including Internet Security Suite, Personal Firewall Plus, and VirusScan, allows remote attackers to cause a denial of service (agent crash) via a long packet, possibly because of an invalid string position field value. NOTE: some of these details are obtained from third party information.
secunia.com/advisories/22371
securitydot.net/xpl/exploits/vulnerabilities/articles/1659/exploit.html
securityreason.com/securityalert/1750
securitytracker.com/id?1017057
www.securityfocus.com/archive/1/448546/100/0/threaded
www.securityfocus.com/bid/20496
exchange.xforce.ibmcloud.com/vulnerabilities/29501