IIS 5.0 and 5.1 allows remote attackers to cause a denial of service (crash) via malformed WebDAV requests that cause a large amount of memory to be assigned.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1011
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1009
https://exchange.xforce.ibmcloud.com/vulnerabilities/10503
https://exchange.xforce.ibmcloud.com/vulnerabilities/10184
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-062
http://www.securityfocus.com/bid/6070
http://www.securityfocus.com/bid/6068
http://www.securityfocus.com/bid/4846
http://www.nextgenss.com/vna/ms-iisdos.txt
http://www.nextgenss.com/advisories/ms-iisdos.txt
http://www.ciac.org/ciac/bulletins/n-011.shtml
http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0048.html