Bug 1852832 (CVE-2020-10378)

Summary:	CVE-2020-10378 python-pillow: an out-of-bounds read in libImaging/PcxDecode.c can occur when reading PCX files
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bdettelb, cstratak, manisandro, miminar, python-maint, tomckay, torsava, tsmetana
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-pillow 7.1.0	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in python-pillow. In libImaging/PcxDecode.c, an out-of-bounds read occurs when reading PCX files where state->shuffle is instructed to read beyond state->buffer.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-02-04 20:42:08 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:	1852833, 1852835, 1854903, 1854904
Bug Blocks:	1852831

Description Marian Rehak 2020-07-01 12:06:21 UTC

In libImaging/PcxDecode.c in Pillow before 6.2.3 and 7.x before 7.0.1, an out-of-bounds read can occur when reading PCX files where state->shuffle is instructed to read beyond state->buffer.

Pull Request:

https://github.com/python-pillow/Pillow/pull/4538

Upstream Advisory:

https://pillow.readthedocs.io/en/stable/releasenotes/7.1.0.html

Upstream Advisory:

https://pillow.readthedocs.io/en/stable/releasenotes/6.2.3.html

Comment 1 Marian Rehak 2020-07-01 12:06:56 UTC

Created python-pillow tracking bugs for this issue:

Affects: fedora-31 [bug 1852833]
Affects: fedora-32 [bug 1852835]

Comment 3 Jason Shepherd 2020-07-02 01:34:46 UTC

Upstream Commit:

https://github.com/python-pillow/Pillow/commit/f260acc30a2c14800db4feacad80924488ec88bf

Comment 6 errata-xmlrpc 2021-02-04 16:14:44 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 20:42:08 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-2020-10378