CVE-2016-8860

NameCVE-2016-8860
DescriptionTor 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-663-1, DSA-3694-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tor (PTS)wheezy0.2.4.27-1vulnerable
wheezy (security)0.2.4.29-1fixed
jessie0.2.5.15-1fixed
jessie (security)0.2.5.16-1fixed
stretch0.2.9.13-1fixed
stretch (security)0.2.9.14-1fixed
buster, sid0.3.1.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
torsource(unstable)0.2.8.9-1medium
torsourcejessie0.2.5.12-3mediumDSA-3694-1
torsourcewheezy0.2.4.27-2mediumDLA-663-1

Notes

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

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