The Negotiate Security Software Provider (SSP) interface in Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service (crash from null dereference) or execute arbitrary code via a crafted SPNEGO NegTokenInit request during authentication protocol selection.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1997
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1962
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1808
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-0119
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011
http://www.us-cert.gov/cas/techalerts/TA04-104A.html
http://www.securityfocus.com/bid/10113
http://www.ciac.org/ciac/bulletins/o-114.shtml
http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0081.html