Vulnerability CVE-2016-8860
Published: 2017-01-04   Modified: 2017-01-05

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Orion Elite Hidden IP Browser Pro 7.9 OpenSSL / Tor / Man-In-The-Middle
MaXe
16.07.2017

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Torproject -> TOR 

 References:
http://openwall.com/lists/oss-security/2016/10/19/11
http://www.debian.org/security/2016/dsa-3694
http://www.securityfocus.com/bid/95116
https://blog.torproject.org/blog/tor-0289-released-important-fixes
https://github.com/torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57ce
https://security.gentoo.org/glsa/201612-45
https://trac.torproject.org/projects/tor/ticket/20384
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