Bug 2142924 (CVE-2022-42966)

Summary:	CVE-2022-42966 python-cleo: exponential ReDoS in cleo leads to denial of service
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	pviktori
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-06 11:33:18 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:	2142925, 2142926, 2142927
Bug Blocks:

Description TEJ RATHI 2022-11-15 14:04:58 UTC

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method

https://research.jfrog.com/vulnerabilities/cleo-redos-xray-257186/

Comment 1 TEJ RATHI 2022-11-15 14:05:19 UTC

Created python-cleo tracking bugs for this issue:

Affects: fedora-35 [bug 2142925]

Comment 2 TEJ RATHI 2022-11-15 14:07:11 UTC

Created python-cleo tracking bugs for this issue:

Affects: fedora-36 [bug 2142926]
Affects: fedora-37 [bug 2142927]

Comment 3 Petr Viktorin (pviktori) 2022-11-23 13:23:23 UTC

To me, a DoS opportunity in a CLI tool doesn't sound like a big problem. Why is this Medium?

Comment 4 Product Security DevOps Team 2022-12-06 11:33:17 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.