Bug 1102401 – VUL-1: CVE-2018-14551: GraphicsMagick,ImageMagick: The ReadMATImageV4 function in coders/mat.c uses an uninitialized variable, leading to memory corruption.

Bug 1102401 - (CVE-2018-14551) VUL-1: CVE-2018-14551: GraphicsMagick,ImageMagick: The ReadMATImageV4 function in coders/mat.c uses an uninitialized variable, leading to memory corruption.

(CVE-2018-14551)
Summary:	VUL-1: CVE-2018-14551: GraphicsMagick,ImageMagick: The ReadMATImageV4 functio...

Status:	RESOLVED WORKSFORME

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P4 - Low Severity: Normal
Target Milestone:	---
Assigned To:	Petr Gajdos
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/211425/
Whiteboard:	CVSSv3:SUSE:CVE-2018-14551:4.4:(AV:L...
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Reported:	2018-07-24 11:17 UTC by Karol Babioch
Modified:	2018-08-06 14:58 UTC (History)
CC List:	1 user (show)

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Found By:	Security Response Team
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Description Karol Babioch 2018-07-24 11:17:33 UTC

CVE-2018-14551

The ReadMATImageV4 function in coders/mat.c in ImageMagick 7.0.8-7 uses an
uninitialized variable, leading to memory corruption.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-14551
https://github.com/ImageMagick/ImageMagick/issues/1221

Comment 1 Petr Gajdos 2018-08-06 14:58:39 UTC

There is no testcase.

ReadMATImageV4() code is only in 15/ImageMagick and 12/ImageMagick, not in 11/ImageMagick or */GraphicsMagick.

15/ImageMagick and 12/ImageMagick does not touch status variable outside the loop in question, i. e. there is no 'if (status == MagickFalse)' code after the loop, which the upstream report is refering to.

I think we are not affected.