Bug 1401440 (CVE-2016-9773)

Summary: CVE-2016-9773 ImageMagick: Heap-buffer overflow in IsPixelGray in pixel-accessor.h (Incomplete fix for CVE-2016-9556)
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: abhgupta, dmcphers, ethan, jhorak, jialiu, jokerman, kseifried, lmeyer, mmccomas, nmurray, pahan, sardella, tiwillia
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2016-12-05 09:29:11 UTC Type: ---
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Bug Blocks: 1381146    

Description Andrej Nemec 2016-12-05 09:28:41 UTC
A heap-buffer overflow vulnerability was found in ImageMagick in IsPixelGray function in pixel-accessor.h triggered by opening a malicious image.

This CVE was assigned for an incomplete fix for CVE-2016-9556

References:

http://seclists.org/oss-sec/2016/q4/550

Upstream patch:

https://github.com/ImageMagick/ImageMagick/commit/4e8c2ed53fcb54a34b3a6185b2584f26cf6874a3