CVE-2015-2689

Name	CVE-2015-2689
Description	Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-178-1, DSA-3203-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tor (PTS)	buster	0.3.5.16-1	fixed
	buster (security)	0.3.5.16-1+deb10u1	fixed
	bullseye (security), bullseye	0.4.5.16-1	fixed
	bookworm, bookworm (security)	0.4.7.16-1	fixed
	trixie	0.4.8.10-1	fixed
	sid	0.4.8.11-1	fixed

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

Package	Type	Release	Fixed Version	Origin
tor	source	squeeze	0.2.4.26-1~deb6u1	DLA-178-1
tor	source	wheezy	0.2.4.26-1	DSA-3203-1
tor	source	(unstable)	0.2.5.11-1

https://bugs.torproject.org/14129