Microsoft Windows GreDrawStream Use-After-Free Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the GreDrawStream function. Crafted data passed to this function can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.