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Bug 1388816 - (CVE-2016-8866) CVE-2016-8866 ImageMagick: Memory allocation failure in AcquireMagickMemory (incomplete fix for CVE-2016-8862)
CVE-2016-8866 ImageMagick: Memory allocation failure in AcquireMagickMemory (...
Status: CLOSED WONTFIX
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20161020,repor...
: Security
Depends On: 1381145
Blocks: 1381146
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Reported: 2016-10-26 04:44 EDT by Andrej Nemec
Modified: 2017-11-21 00:25 EST (History)
14 users (show)

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Last Closed: 2017-11-21 00:25:01 EST
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Description Andrej Nemec 2016-10-26 04:44:14 EDT 
It was discovered that the upstream fix for this issue was not complete. There is still a memory allocation failure in memory.c

References:

http://seclists.org/oss-sec/2016/q4/197
https://blogs.gentoo.org/ago/2016/10/20/imagemagick-memory-allocation-failure-in-acquiremagickmemory-memory-c-incomplete-fix-for-cve-2016-8862/
Comment 1 Andrej Nemec 2016-10-26 04:47:47 EDT 
Created ImageMagick tracking bugs for this issue:

Affects: fedora-all [bug 1381145]
Comment 2 Huzaifa S. Sidhpurwala 2017-01-20 03:44:16 EST 
Upstream patch:

https://github.com/ImageMagick/ImageMagick/commit/ab2c9d6a8dd6d71b161ec9cc57a588b116b52322

Analysis:

Basically lowers map_length from 32 (fix for CVE-2016-8862) to the new value 22. Even without the previous fix, this flaw affects ImageMagick shipped with Red Hat Enterprise Linux, hence marking as affected.
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