Bug 1484877 (CVE-2017-12671)

Summary:	CVE-2017-12671 ImageMagick: Invalid free in the function RelinquishMagickMemory
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	extras-orphan, jhorak, pahan
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Last Closed:	2017-08-24 13:09:14 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description Andrej Nemec 2017-08-24 13:01:52 UTC

In ImageMagick 7.0.6-3, a missing NULL assignment was found in coders/png.c, leading to an invalid free in the function RelinquishMagickMemory in MagickCore/memory.c, which allows attackers to cause a denial of service.

Upstream issue:

https://github.com/ImageMagick/ImageMagick/issues/621

Upstream patch:

https://github.com/ImageMagick/ImageMagick/commit/0de8fd616b92888a7e3d0f640fbb2d397d093944