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Windows kernel: buffer overflow in NtGdiBitBlt #474

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Credit is to "Nils Sommer of bytegeist, working with Google Project Zero".

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The attached PoC triggers a buffer overflow in the NtGdiBitBlt​ system call. 
It reproduces reliable on Win 7 32-bit with Special Pool enabled on win32k.sys

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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 6 Jul 2015 at 6:56

Attachments:

GoogleCodeExporter commented 9 years ago

Original comment by cev...@google.com on 6 Jul 2015 at 8:23

GoogleCodeExporter commented 9 years ago

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

GoogleCodeExporter commented 9 years ago 
Fixed in September bulletin MS15-097

Original comment by haw...@google.com on 21 Sep 2015 at 8:42

GoogleCodeExporter commented 9 years ago 
Accounting mixup - this is not CVE-2015-2511

Original comment by haw...@google.com on 21 Sep 2015 at 8:45

GoogleCodeExporter commented 9 years ago 
Fixed in September bulletin

From MSRC: "This was fixed on 9/8 as part of hardening work we did when we 
fixed CVE-2015-2512"

Original comment by haw...@google.com on 23 Sep 2015 at 8:11