Bug 2049507 (CVE-2022-21696)

Summary:	CVE-2022-21696 onionshare: improper input validation
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:	mail, pj.pandit
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	onionshare 2.5	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-02-02 12:31:13 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:	2049508
Bug Blocks:

Description Marian Rehak 2022-02-02 11:19:05 UTC

In affected versions it is possible to change the username to that of another chat participant with an additional space character at the end of the name string. An adversary with access to the chat environment can use the rename feature to impersonate other participants by adding whitespace characters at the end of the username.

Reference:

https://github.com/onionshare/onionshare/security/advisories/GHSA-68vr-8f46-vc9f

Comment 1 Marian Rehak 2022-02-02 11:19:19 UTC

Created onionshare tracking bugs for this issue:

Affects: fedora-all [bug 2049508]

Comment 2 Product Security DevOps Team 2022-02-02 12:31:11 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.