The Graphics Rendering Engine in Microsoft Windows 2000 through 2000 SP4 and Windows XP through SP2 maps GDI Kernel structures on a global shared memory section that is mapped with read-only permissions, but can be remapped by other processes as read-write, which allows local users to cause a denial of service (memory corruption and crash) and gain privileges by modifying the kernel structures.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2056
https://exchange.xforce.ibmcloud.com/vulnerabilities/30042
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-017
http://www.vupen.com/english/advisories/2007/1215
http://www.vupen.com/english/advisories/2006/4358
http://www.securityfocus.com/archive/1/466186/100/200/threaded
http://www.blackhat.com/html/bh-europe-07/bh-eu-07-speakers.html#Eriksson
http://securitytracker.com/id?1017168
http://secunia.com/advisories/22668