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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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:
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 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/.