CVE-2016-8860
mediumpriority · track · 31EPSS 0.019 · 80 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- http://openwall.com/lists/oss-security/2016/10/19/11cnnvd
- http://www.securityfocus.com/bid/95116cnnvd
- https://blog.torproject.org/blog/tor-0289-released-important-fixescnnvd
- https://github.com/torproject/tor/commit/3cea86eb2fbb65949673eb4ba8ebb695c87a57cecnnvd
- https://trac.torproject.org/projects/tor/ticket/20384cnnvd
- http://openwall.com/lists/oss-security/2016/10/19/11enisa_euvd
- http://www.debian.org/security/2016/dsa-3694enisa_euvd
- http://www.securityfocus.com/bid/95116enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan