Microsoft Internet Information Services (IIS) 5.0 and 5.1 allows remote attackers to cause a denial of service via a long WebDAV request with a (1) PROPFIND or (2) SEARCH method, which generates an error condition that is not properly handled.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A933
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-018
http://www.spidynamics.com/iis_alert.html
http://marc.info/?l=ntbugtraq&m=105421243732552&w=2
http://marc.info/?l=bugtraq&m=105427362724860&w=2
http://archives.neohapsis.com/archives/bugtraq/2003-05/0308.html