Buffer overflow in Internet Information Server (IIS) 4.0, 5.0, and 5.1 allows remote attackers to spoof the safety check for HTTP headers and cause a denial of service or execute arbitrary code via HTTP header field values.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A39
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A137
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-018
http://www.securityfocus.com/bid/4476
http://www.kb.cert.org/vuls/id/454091
http://www.iss.net/security_center/static/8797.php
http://www.cisco.com/warp/public/707/Microsoft-IIS-vulnerabilities-MS02-018.shtml