Bug 2010888 (CVE-2021-41867)

Summary:	CVE-2021-41867 onionshare: disclosure of chat participants to unauthenticated users when using –chat option in non-public mode
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mail, pj.pandit
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2021-10-05 18:21:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2010889
Bug Blocks:

Description Guilherme de Almeida Suckevicz 2021-10-05 14:49:35 UTC

An information disclosure vulnerability in OnionShare 2.3 before 2.4 allows remote unauthenticated attackers to retrieve the full list of participants of a non-public OnionShare node via the --chat feature.

References:
https://github.com/onionshare/onionshare/issues/1397
https://www.ihteam.net/advisory/onionshare/

Comment 1 Guilherme de Almeida Suckevicz 2021-10-05 14:49:48 UTC

Created onionshare tracking bugs for this issue:

Affects: fedora-all [bug 2010889]

Comment 2 Product Security DevOps Team 2021-10-05 18:21:17 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.