Bug 1327215 (CVE-2016-3982)

Summary:	CVE-2016-3982 optipng: heap buffer overflow in the bmp_rle4_fread function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cbuissar, jgrulich, opensource
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	optipng 0.7.6	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-07-19 08:18:29 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:	1323936, 1323937, 1327221, 1327222
Bug Blocks:	1308551

Description Andrej Nemec 2016-04-14 13:26:27 UTC

Off-by-one error in the bmp_rle4_fread function in pngxrbmp.c in
OptiPNG before 0.7.6 allows remote attackers to cause a denial of
service (out-of-bounds read or write access and crash) or possibly
execute arbitrary code via a crafted image file, which triggers a
heap-based buffer overflow.

External references that includes reproducer and patch:

https://sourceforge.net/p/optipng/bugs/57/

Comment 1 Andrej Nemec 2016-04-14 13:56:49 UTC

Created optipng tracking bugs for this issue:

Affects: fedora-all [bug 1327221]
Affects: epel-all [bug 1327222]

Comment 2 Cedric Buissart 2016-07-19 08:16:41 UTC

Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.