Bug 2001907 (CVE-2021-23437)

Summary:	CVE-2021-23437 python-pillow: possible ReDoS via the getrgb function
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bdettelb, cstratak, manisandro, orion, paul, python-maint, saroy, torsava
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-pillow 8.3.2	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in python-pillow, where a Regular Expression Denial of Service (ReDoS) via the getrgb function occurs. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2001908, 2001909, 2001910, 2001911, 2011717
Bug Blocks:	2011540

Description Marian Rehak 2021-09-07 12:28:29 UTC

A possible Regular Expression Denial of Service (ReDoS) via the getrgb function.

External Reference:

https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443

Comment 1 Marian Rehak 2021-09-07 12:29:41 UTC

Created mingw-python-pillow tracking bugs for this issue:

Affects: fedora-all [bug 2001908]


Created python-pillow tracking bugs for this issue:

Affects: fedora-all [bug 2001909]


Created python2-pillow tracking bugs for this issue:

Affects: fedora-all [bug 2001910]


Created python3-pillow tracking bugs for this issue:

Affects: epel-7 [bug 2001911]

Comment 2 Sandro Mani 2021-09-13 06:36:25 UTC

Affects python-pillow < 8.3.2

Fix: https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b