Bug 2009369 (CVE-2021-39229)

Summary:	CVE-2021-39229 python-apprise: inefficient regular expression may lead to DoS
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	lead2gold
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-apprise 0.9.5.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-09-30 18:23:00 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:	2009370, 2009371
Bug Blocks:

Description Marian Rehak 2021-09-30 13:26:03 UTC

Users who use Apprise granting them access to the IFTTT plugin are subject to a denial of service attack on an inefficient regular expression. Users who are unable to upgrade are advised to remove `apprise/plugins/NotifyIFTTT.py` to eliminate the service.

Upstream Reference:

https://github.com/caronc/apprise/security/advisories/GHSA-qhmp-h54x-38qr
https://github.com/caronc/apprise/pull/436

Comment 1 Marian Rehak 2021-09-30 13:26:19 UTC

Created python-apprise tracking bugs for this issue:

Affects: epel-all [bug 2009371]
Affects: fedora-all [bug 2009370]

Comment 2 Product Security DevOps Team 2021-09-30 18:23:00 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.