Bug 1476300 - (CVE-2017-11722) CVE-2017-11722 GraphicsMagick: Out-of-bounds read in the WriteOnePNGImage function
CVE-2017-11722 GraphicsMagick: Out-of-bounds read in the WriteOnePNGImage fun...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20170725,reported=2...
: Security
Depends On: 1475494 1475495
Blocks:
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Reported: 2017-07-28 10:51 EDT by Andrej Nemec
Modified: 2017-07-28 10:51 EDT (History)
2 users (show)

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Description Andrej Nemec 2017-07-28 10:51:06 EDT
The WriteOnePNGImage function in coders/png.c in GraphicsMagick 1.3.26 allows attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted file, because the program's actual control flow was inconsistent with its indentation. This resulted in a logging statement executing outside of a loop, and consequently using an invalid array index corresponding to the loop's exit condition.

Upstream patch:

http://hg.code.sf.net/p/graphicsmagick/code/rev/f423ba88ca4e
Comment 1 Andrej Nemec 2017-07-28 10:51:45 EDT
Created GraphicsMagick tracking bugs for this issue:

Affects: epel-all [bug 1475494]
Affects: fedora-all [bug 1475495]

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