Bug 1999865 (CVE-2021-34434)

Summary:	CVE-2021-34434 mosquitto: Existing subscriptions for that client are not revoked
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	linville, mail, richmattes
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:	2021-09-02 20:33:22 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:	2000698
Bug Blocks:

Description Pedro Sampaio 2021-08-31 20:20:50 UTC

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=575324

Comment 1 Pedro Sampaio 2021-09-02 17:43:23 UTC

Created mosquitto tracking bugs for this issue:

Affects: fedora-all [bug 2000698]

Comment 2 Product Security DevOps Team 2021-09-02 20:33:22 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.