Integer overflow in the packed PE file parsing implementation in BitDefender products before 20060829, including Antivirus, Antivirus Plus, Internet Security, Mail Protection for Enterprises, and Online Scanner; and BitDefender products for Microsoft ISA Server and Exchange 5.5 through 2003; allows remote attackers to execute arbitrary code via a crafted file, which triggers a heap-based buffer overflow, aka the "cevakrnl.xmd vulnerability."
https://exchange.xforce.ibmcloud.com/vulnerabilities/30904
http://www.vupen.com/english/advisories/2006/5040
http://www.securityfocus.com/bid/21610
http://www.securityfocus.com/archive/1/454501/100/0/threaded
http://www.bitdefender.com/KB323-en--cevakrnl.xmd-vulnerability.html
http://securitytracker.com/id?1017389
http://securityreason.com/securityalert/2044
http://secunia.com/advisories/23415
http://lists.grok.org.uk/pipermail/full-disclosure/2006-December/051319.html