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Microsoft Windows - Race Condition DestroySMWP Use-After-Free (MS15-115)

🗓️ 23 Nov 2015 00:00:00Reported by Nils SommerType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 32 Views

Microsoft Windows Race Condition DestroySMWP Use-After-Free vulnerabilit

Code
Source: https://code.google.com/p/google-security-research/issues/detail?id=509

The attached testcase crashes Window 7 32-bit with Special Pool enabled on win32k.sys due to a use-after-free condition. The bug appears to be a race condition between two threads and multiple runs on the PoC might be required to trigger the bug. This is more reliable on systems with multiple cores.
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Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38795.zip

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