Bug 1725687 (CVE-2019-12957)

Summary:	CVE-2019-12957 xpdf: buffer over-read in FoFiType1C::convertToType1 in fofi/FoFiType1C.cc
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	pertusus, tcallawa
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:	2019-07-12 13:08:06 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:	1725691, 1725690
Bug Blocks:

Description Dhananjay Arunesh 2019-07-01 09:18:03 UTC

In Xpdf 4.01.01, a buffer over-read could be triggered in FoFiType1C::convertToType1 in fofi/FoFiType1C.cc when the index number is larger than the charset array bounds. It can, for example, be triggered by sending a crafted PDF document to the pdftops tool. It allows an attacker to use a crafted pdf file to cause Denial of Service or an information leak, or possibly have unspecified other impact.

Reference:
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41813

Comment 1 Dhananjay Arunesh 2019-07-01 09:21:25 UTC

Created xpdf tracking bugs for this issue:

Affects: fedora-all [bug 1725690]

Comment 2 Dhananjay Arunesh 2019-07-01 09:21:52 UTC

Created xpdf tracking bugs for this issue:

Affects: epel-all [bug 1725691]

Comment 3 Product Security DevOps Team 2019-07-12 13:08:06 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.