HTTP.sys in Microsoft Windows 8, Windows Server 2012, and Windows RT allows remote attackers to cause a denial of service (infinite loop) via a crafted HTTP header, aka "HTTP.sys Denial of Service Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16088
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-039