Bug 1890687 (CVE-2020-27560)

Summary:	CVE-2020-27560 ImageMagick: division by zero in OptimizeLayerFrames function in MagickCore/layer.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fedora, jhorak, mike, pahan, rhel8-maint, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ImageMagick 7.0.10-35	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-13 17:28:32 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:	1890689, 1890690, 1910567
Bug Blocks:	1890688

Description Guilherme de Almeida Suckevicz 2020-10-22 17:55:32 UTC

ImageMagick 7.0.10-34 allows Division by Zero in OptimizeLayerFrames in MagickCore/layer.c, which may cause a denial of service.

Reference and upstream patch:
https://github.com/ImageMagick/ImageMagick/pull/2743
https://github.com/ImageMagick/ImageMagick/commit/ef59bd764f88d893f1219fee8ba696a5d3f8c1c4

Comment 1 Guilherme de Almeida Suckevicz 2020-10-22 17:57:00 UTC

Created ImageMagick tracking bugs for this issue:

Affects: epel-8 [bug 1890690]
Affects: fedora-all [bug 1890689]

Comment 3 Mauro Matteo Cascella 2020-11-13 15:48:56 UTC

Statement:

This flaw is out of support scope for Red Hat Enterprise Linux 5, 6, and 7. Inkscape is not affected because it no longer uses a bundled ImageMagick in Red Hat Enterprise Linux 8. For more information regarding support scopes, please see https://access.redhat.com/support/policy/updates/errata.

Comment 4 Product Security DevOps Team 2020-11-13 17:28:32 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-27560