CVE-2014-5117

Description

Tor before 0.2.4.23 and 0.2.5 before 0.2.5.6-alpha maintains a circuit after an inbound RELAY_EARLY cell is received by a client, which makes it easier for remote attackers to conduct traffic-confirmation attacks by using the pattern of RELAY and RELAY_EARLY cells as a means of communicating information about hidden service names.

References

https://trac.torproject.org/projects/tor/ticket/1038

https://lists.torproject.org/pipermail/tor-talk/2014-July/034180.html

https://lists.torproject.org/pipermail/tor-announce/2014-July/000094.html

https://lists.torproject.org/pipermail/tor-announce/2014-July/000093.html

https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack

http://secunia.com/advisories/60647

http://secunia.com/advisories/60084

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3