Bug 1789538 (CVE-2020-5310)

Summary:	CVE-2020-5310 python-pillow: Integer overflow leading to buffer overflow in ImagingLibTiffDecode
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	bdettelb, cstratak, dbecker, jjoyce, jschluet, lhh, lpeer, manisandro, mburns, miminar, orion, python-maint, sclewis, slinaber, tomckay, torsava, tsmetana
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-pillow 6.2.2	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-02-04 20:41:52 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:	1789541, 1789542
Bug Blocks:	1789544

Description Pedro Sampaio 2020-01-09 18:54:04 UTC

libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.

Upstream patch:

https://github.com/python-pillow/Pillow/commit/4e2def2539ec13e53a82e06c4b3daf00454100c4

References:

https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.html

Comment 1 Pedro Sampaio 2020-01-09 19:03:55 UTC

Created python-pillow tracking bugs for this issue:

Affects: fedora-all [bug 1789541]


Created python3-pillow tracking bugs for this issue:

Affects: epel-7 [bug 1789542]

Comment 2 Jason Shepherd 2020-01-10 02:24:17 UTC

While Red Hat Quay includes the python-pillow it's not used, therefore this issue is rated moderate for Red Hat Quay.

Comment 4 Riccardo Schirone 2020-02-06 14:29:23 UTC

The vulnerability was introduced with https://github.com/python-pillow/Pillow/commit/f0436a4ddc954541fa10a531e2d9ea0c5ae2065d and https://github.com/python-pillow/Pillow/commit/e91b851fdc1c914419543f485bdbaa010790719f, which add support for reading tiled TIFF images and add the realloc call.

Comment 5 Riccardo Schirone 2020-02-06 14:36:04 UTC

Statement:

This issue did not affect the versions of python-pillow as shipped with Red Hat Enterprise Linux 5, 6, 7, and 8 as they did not include support for tiled TIFF images, where the flaw lies.

Comment 6 errata-xmlrpc 2021-02-04 16:14:22 UTC

This issue has been addressed in the following products:

  Red Hat Quay 3

Via RHSA-2021:0420 https://access.redhat.com/errata/RHSA-2021:0420

Comment 7 Product Security DevOps Team 2021-02-04 20:41:52 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-5310