Microsoft Windows Kernel - 'bGetRealizedBrush' Use-After-Free (MS15-097)

EDB-ID:

38277


Type:

dos


Platform:

Windows_x86

Date:

2015-09-22


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Source: https://code.google.com/p/google-security-research/issues/detail?id=458

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The attached testcase crashes Win 7 with Special Pool on win32k while accessing freed memory in bGetRealizedBrush​​.
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Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/38277.zip