Bug 1327213 (CVE-2016-3981)

Summary:	CVE-2016-3981 optipng: heap buffer overflow in the bmp_read_rows 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 08:18:22 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:	1323936, 1323937, 1327221, 1327222
Bug Blocks:	1308551

Description Andrej Nemec 2016-04-14 13:20:23 UTC

Heap-based buffer overflow in the bmp_read_rows 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.

External references, including reproducer and patch:

https://sourceforge.net/p/optipng/bugs/56/

Comment 1 Andrej Nemec 2016-04-14 13:56:44 UTC

Created optipng tracking bugs for this issue:

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

Comment 3 Cedric Buissart 2016-07-18 15:42:48 UTC

Patch is merged with CVE-2016-2191, presented as a set of 2 patches :
  -> https://sourceforge.net/p/optipng/bugs/56/#5168
  -> https://sourceforge.net/p/optipng/bugs/56/#d6e6

Comment 4 Cedric Buissart 2016-07-19 08:16:39 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/.