Bug 1764819 (CVE-2019-16115)

Summary:	CVE-2019-16115 xpdf: stack-based buffer under-read in IdentityFunction::transform in Function.cc
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:	medium	Docs Contact:
Priority:	medium
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:	2019-10-24 00:51:14 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:	1764820, 1764821
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2019-10-23 19:38:56 UTC

In Xpdf 4.01.01, a stack-based buffer under-read could be triggered in IdentityFunction::transform in Function.cc, used by GfxAxialShading::getColor. It can, for example, be triggered by sending a crafted PDF document to the pdftoppm tool. It allows an attacker to use a crafted PDF file to cause Denial of Service or possibly unspecified other impact.

Reference:
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41872

Comment 1 Guilherme de Almeida Suckevicz 2019-10-23 19:39:10 UTC

Created xpdf tracking bugs for this issue:

Affects: epel-all [bug 1764820]
Affects: fedora-all [bug 1764821]

Comment 2 Product Security DevOps Team 2019-10-24 00:51:14 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.