CVE-2022-21689

Name	CVE-2022-21689
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 the receive mode limits concurrent uploads to 100 per second and blocks other uploads in the same second, which can be triggered by a simple script. An adversary with access to the receive mode can block file upload for others. There is no way to block this attack in public mode due to the anonymity properties of the tor network.
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)	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	Debian Bugs
onionshare	source	buster	(not affected)
onionshare	source	bullseye	2.2-3+deb11u1
onionshare	source	(unstable)	2.5-1	1014966

Notes

[buster] - onionshare <not-affected> (Vulnerable code not present)
https://github.com/onionshare/onionshare/security/advisories/GHSA-jh82-c5jw-pxpc
https://github.com/onionshare/onionshare/commit/096178a9e6133fd6ca9d95a00a67bba75ccab377 (v2.5)