The Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly process authentication requests, which allows local users to gain privileges via a request with a crafted length, aka "LSASS Length Validation Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12537
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-014
http://www.vupen.com/english/advisories/2011/0327
http://www.securitytracker.com/id?1025049