Microsoft Windows Kernel - 'NtGdiGetTextExtentExW' Out-of-Bounds Memory Read

                Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=685

The attached Proof-of-Concept crashes Windows 7 with special pool enabled on win32k.sys. The crash is due accessing memory past the end of a buffer.


Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/39648.zip