Bug 1489700 – CVE-2017-14172 ImageMagick: Lack of an EOF check in ReadPSImage() function

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Bug 1489700 - (CVE-2017-14172) CVE-2017-14172 ImageMagick: Lack of an EOF check in ReadPSImage() function

Summary:	CVE-2017-14172 ImageMagick: Lack of an EOF check in ReadPSImage() function

Status:	NEW

Aliases:	CVE-2017-14172

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20170907,reported=2...
Keywords:	Security

Depends On:	1488981
Blocks:
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Reported:	2017-09-08 03:43 EDT by Andrej Nemec
Modified:	2017-09-08 03:48 EDT (History)
CC List:	5 users (show)

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Description Andrej Nemec 2017-09-08 03:43:44 EDT

In coders/ps.c in ImageMagick 7.0.7-0 Q16, a DoS in ReadPSImage() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted PSD file, which claims a large "extent" field in the header but does not contain sufficient backing data, is provided, the loop over "length" would consume huge CPU resources, since there is no EOF check inside the loop.

Upstream issue:

https://github.com/ImageMagick/ImageMagick/issues/715

Upstream patch:

https://github.com/ImageMagick/ImageMagick/commit/8598a497e2d1f556a34458cf54b40ba40674734c

Comment 1 Andrej Nemec 2017-09-08 03:48:38 EDT

Created ImageMagick tracking bugs for this issue:

Affects: fedora-all [bug 1488981]

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