CVE-2011-2768

Name	CVE-2011-2768
Description	Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-2331-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tor (PTS)	jessie, jessie (lts)	0.2.5.16-1	fixed
	stretch	0.2.9.16-1	fixed
	stretch (security), stretch (lts)	0.2.9.15-1	fixed
	buster (security), buster, buster (lts)	0.3.5.16-1+deb10u1	fixed
	bullseye (security), bullseye	0.4.5.16-1	fixed
	bookworm (security), bookworm	0.4.7.16-1	fixed
	sid, trixie	0.4.8.13-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
tor	source	lenny	0.2.1.31-1~lenny+1		DSA-2331-1
tor	source	squeeze	0.2.1.31-1		DSA-2331-1
tor	source	(unstable)	0.2.2.34-1