CVE-2022-21696

Name	CVE-2022-21696
Description	OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. 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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1014966

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
onionshare (PTS)	jessie/contrib	0.6-3	vulnerable
	buster	1.3.2-1	fixed
	bullseye	2.2-3+deb11u2	fixed
	bookworm	2.6-5~deb12u1	fixed
	sid, trixie	2.6.2-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
onionshare	source	jessie	(unfixed)	end-of-life
onionshare	source	buster	(not affected)
onionshare	source	bullseye	(not affected)
onionshare	source	(unstable)	2.5-1		1014966

Notes

[bullseye] - onionshare <not-affected> (Vulnerable code not present)
[buster] - onionshare <not-affected> (Vulnerable code not present)
https://github.com/onionshare/onionshare/security/advisories/GHSA-68vr-8f46-vc9f