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

EDB-ID:

38795


Type:

dos


Platform:

Windows

Date:

2015-11-23


Become a Certified Penetration Tester

Enroll in Penetration Testing with Kali Linux , the course required to become an Offensive Security Certified Professional (OSCP)

GET CERTIFIED

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.
---


Proof of Concept:
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/38795.zip