CVE-2016-8860

Name	CVE-2016-8860
Description	Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-663-1, DSA-3694-1
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
tor (PTS)	stretch	0.2.9.16-1	fixed
	stretch (security)	0.2.9.15-1	fixed
	buster	0.3.5.14-1	fixed
	buster (security)	0.3.5.16-1	fixed
	bullseye	0.4.5.9-1	fixed
	bullseye (security)	0.4.5.10-1~deb11u1	fixed
	bookworm, sid	0.4.5.10-1	fixed

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

Package	Type	Release	Fixed Version	Origin
tor	source	wheezy	0.2.4.27-2	DLA-663-1
tor	source	jessie	0.2.5.12-3	DSA-3694-1
tor	source	(unstable)	0.2.8.9-1

Notes

https://trac.torproject.org/projects/tor/ticket/20384
https://blog.torproject.org/blog/tor-0289-released-important-fixes
https://gitweb.torproject.org/tor.git/commit/?id=3cea86eb2fbb65949673eb4ba8ebb695c87a57ce
https://www.openwall.com/lists/oss-security/2016/10/18/11