The SYMDNS.SYS driver in Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allows remote attackers to cause a denial of service (CPU consumption from infinite loop) via a DNS response with a compressed name pointer that points to itself.
lists.grok.org.uk/pipermail/full-disclosure/2004-May/021359.html
secunia.com/advisories/11066
securityresponse.symantec.com/avcenter/security/Content/2004.05.12.html
securitytracker.com/id?1010144
securitytracker.com/id?1010145
securitytracker.com/id?1010146
www.ciac.org/ciac/bulletins/o-141.shtml
www.kb.cert.org/vuls/id/682110
www.osvdb.org/6100
www.securityfocus.com/bid/10336
exchange.xforce.ibmcloud.com/vulnerabilities/16132