Bug 1489705 – CVE-2017-14174 ImageMagick: Lack of EOF check in the ReadPSDLayersInternal() function

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Bug 1489705 - (CVE-2017-14174) CVE-2017-14174 ImageMagick: Lack of EOF check in the ReadPSDLayersInternal() function

Summary:	CVE-2017-14174 ImageMagick: Lack of EOF check in the ReadPSDLayersInternal() ...

Status:	NEW

Aliases:	CVE-2017-14174

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 03:46 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 03:46:21 EDT

In coders/psd.c in ImageMagick 7.0.7-0 Q16, a DoS in ReadPSDLayersInternal() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted PSD file, which claims a large "length" 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/714

Upstream patch:

https://github.com/ImageMagick/ImageMagick/commit/04a567494786d5bb50894fc8bb8fea0cf496bea8
https://github.com/ImageMagick/ImageMagick/commit/f68a98a9d385838a1c73ec960a14102949940a64

Comment 1 Andrej Nemec 2017-09-08 03:48:47 EDT

Created ImageMagick tracking bugs for this issue:

Affects: fedora-all [bug 1488981]

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