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bugtraq logo Bugtraq mailing list archives

BSOD in Win'2k3, Vista x86 and x64 by nonpriviledged user
From: support () killprog com
Date: Sat, 8 Nov 2008 18:54:06 -0700
BSOD or hard system hang due to race condition in win32k. sys code that processes UnhookWindowsHookEx. Reproduced when 
thread calls many times UnhookWindowsHookEx in the same time with switching active windows desktop object 
(SwitchDesktop) from desktop where hooks are unhooked and broadcasting windows messages to windows on that desktop. 
Sample exploit code can be downloaded from: http://killprog.com/whk.zip Works on Win'2k3 and Vista. XP seems to be 
immune to this.

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