Bug 740864 (CVE-2011-3328)

Summary:	CVE-2011-3328 libpng: malformed cHRM divide-by-zero vulnerability in 1.5.4
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	tgl
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libpng 1.5.5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-09-23 15:17:17 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:

Description Vincent Danen 2011-09-23 15:15:49 UTC

It was reported [1] that libpng 1.5.4 suffered from a flaw when encountering a malformed cHRM chunk in a PNG graphics file.  libpng would perform a divide-by-zero, which would cause libpng, or any application linked to libpng, to crash.

This flaw only affected libpng 1.5.4 where it was introduced, and is corrected in version 1.5.5. [2]

[1] http://www.kb.cert.org/vuls/id/477046
[2] http://sourceforge.net/tracker/index.php?func=detail&aid=3406145&group_id=5624&atid=105624


Statement:

Not vulnerable. This issue did not affect the versions of libpng as shipped with Red Hat Enterprise Linux 4, 5, or 6.

Comment 1 Vincent Danen 2011-09-23 15:17:17 UTC

This does not affect anything we ship; we do not provide libpng 1.5.x in any product.