Bug 1661541 (CVE-2018-20189)

Summary:	CVE-2018-20189 GraphicsMagick: denial of service via a dib file
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	andreas, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:44:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1661542, 1661543
Bug Blocks:

Description Laura Pardo 2018-12-21 13:53:08 UTC

In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization. 


References:
http://hg.graphicsmagick.org/hg/GraphicsMagick/rev/648e2b406589 
https://sourceforge.net/p/graphicsmagick/bugs/585/

Comment 1 Laura Pardo 2018-12-21 13:53:22 UTC

Created GraphicsMagick tracking bugs for this issue:

Affects: epel-all [bug 1661542]
Affects: fedora-all [bug 1661543]

Comment 2 Product Security DevOps Team 2019-06-10 10:44:28 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.