Bug 1561225 (CVE-2018-9018)

Summary:	CVE-2018-9018 GraphicsMagick: divide-by-zero in the ReadMNGImage function in coders/png.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	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 10:18:58 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:	1561226, 1561227, 1561228
Bug Blocks:

Description Laura Pardo 2018-03-27 22:37:20 UTC

A flaw was found in GraphicsMagick 1.3.28, there is a divide-by-zero in the ReadMNGImage function of coders/png.c. Remote attackers could leverage this vulnerability to cause a crash and denial of service via a crafted mng file.


References:
https://sourceforge.net/p/graphicsmagick/bugs/554/

Patch:
https://sourceforge.net/p/graphicsmagick/code/ci/84040fada1eeea62b956bc90d8e67430927c4d90/

Comment 1 Laura Pardo 2018-03-27 22:37:45 UTC

Created GraphicsMagick tracking bugs for this issue:

Affects: fedora-all [bug 1561226]
Affects: epel-all [bug 1561227]