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Windows kernel: pool buffer overflows in NtGdiStretchBlt #415

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago 
Credit is to "Nils Sommer of bytegeist, working with Google Project Zero".

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Tested on Win 7 32-bit with Special Pool enabled. 

Multiple pool buffer overflows can be triggered through the NtGdiStretchBlt 
system call. The attached PoC demonstrates a write overflow and another read 
over flow issue which is likely to be usable for memory leaks (enabled by 
uncommenting the first NtGdiStretchBlt call).

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This bug is subject to a 90 day disclosure deadline. If 90 days elapse
without a broadly available patch, then the bug report will automatically
become visible to the public.

Original issue reported on code.google.com by cev...@google.com on 29 May 2015 at 8:23

Attachments:

GoogleCodeExporter commented 8 years ago

Original comment by cev...@google.com on 29 May 2015 at 9:22

GoogleCodeExporter commented 8 years ago 
10 day grace period extension. Patch targeted for 09/08 (September Patch 
Tuesday).

Original comment by cev...@google.com on 30 Jul 2015 at 5:34

GoogleCodeExporter commented 8 years ago

Original comment by haw...@google.com on 21 Aug 2015 at 6:58

GoogleCodeExporter commented 8 years ago 
Fixed in September bulletin MS15-097.

Original comment by haw...@google.com on 21 Sep 2015 at 8:39

GoogleCodeExporter commented 8 years ago

Original comment by haw...@google.com on 21 Sep 2015 at 9:36