Bug 1382000 (CVE-2016-9189)

Summary:	CVE-2016-9189 python-pillow: Integer overflows leading to memory disclosure in PyImaging_MapBuffer (Map.c)
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cstratak, dmoppert, manisandro, miminar, torsava, tsmetana
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-pillow 3.3.2	Doc Type:	If docs needed, set a value
Doc Text:	A memory disclosure vulnerability was found in python-pillow. Functions in map.c failed to check for image overflow and check that an offset parameter was within bounds, allowing a crafted image to cause a crash or disclosure of memory.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-12-12 01:48:08 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:	1380811
Bug Blocks:	1382009

Description Adam Mariš 2016-10-05 13:43:54 UTC

Integer overflow vulnerabilities were found in PyImaging_MapBuffer function, specifically there's unchecked multiplication of xsize * ysize * bytes_per_pixel where the sizes are each an int as well as unchecked addition of the size calculated above with a attacker provided offset value.

Upstream patch:

https://github.com/python-pillow/Pillow/commit/c50ebe6459a131a1ea8ca531f10da616d3ceaa0f

Comment 1 Adam Mariš 2016-10-05 13:52:22 UTC

Acknowledgments:

Name: the Pillow project

Comment 3 Andrej Nemec 2016-11-07 09:16:53 UTC

Upstream bug:

https://github.com/python-pillow/Pillow/issues/2105

References:

http://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html

Comment 4 Doran Moppert 2016-12-12 02:05:45 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/.