Bug 1542264 (CVE-2018-6544)

Summary:	CVE-2018-6544 mupdf: denial of service (DoS) via a crafted PDF document
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:	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:	2019-06-08 03:39:22 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:	1542265
Bug Blocks:

Description Laura Pardo 2018-02-06 00:00:51 UTC

A flaw was found in pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document. 

References: 
https://bugs.ghostscript.com/show_bug.cgi?id=698965 
https://bugs.ghostscript.com/show_bug.cgi?id=698830 

Patch:
http://git.ghostscript.com/?p=mupdf.git;h=b03def134988da8c800adac1a38a41a1f09a1d89 
http://git.ghostscript.com/?p=mupdf.git;h=26527eef77b3e51c2258c8e40845bfbc015e405d

Comment 1 Laura Pardo 2018-02-06 00:01:27 UTC

Created mupdf tracking bugs for this issue:

Affects: fedora-all [bug 1542265]

Comment 2 Product Security DevOps Team 2019-06-08 03:39:22 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.