Some vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges.
1) An input validation error in the Win32k kernel-mode driver (Win32k.sys) when invoking a system call can be exploited to execute arbitrary code in kernel mode.
2) An error in the Win32k kernel-mode driver (Win32k.sys) when handling input passed through the kernel component of GDI (Graphics Device Interface) can be exploited to execute arbitrary code in kernel mode.
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Subject: Microsoft Windows Win32k Kernel-Mode Driver Privilege Escalation
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