Bug 1985351 (CVE-2020-19609)

Summary:	CVE-2020-19609 mupdf: heap-based buffer overflow in tiff_expand_colormap() when parsing TIFF files
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	mjg
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:	2021-07-23 22:46:51 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:	1985352
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-07-23 13:36:57 UTC

Artifex MuPDF before 1.18.0 has a heap based buffer over-write in tiff_expand_colormap() function when parsing TIFF files allowing attackers to cause a denial of service.

References:
https://bugs.ghostscript.com/show_bug.cgi?id=703076
https://bugs.ghostscript.com/show_bug.cgi?id=701176
http://git.ghostscript.com/?p=mupdf.git;h=b7892cdc7fae62aa57d63ae62144e1f11b5f9275

Comment 1 Guilherme de Almeida Suckevicz 2021-07-23 13:37:15 UTC

Created mupdf tracking bugs for this issue:

Affects: fedora-all [bug 1985352]

Comment 2 Product Security DevOps Team 2021-07-23 22:46:51 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.

Comment 3 Product Security DevOps Team 2021-07-24 04:46:49 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.