Vulnerability in Torproject Tor
CVE-2014-5117
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.021 (81.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Torproject Tor — versions 0.0.2, 0.0.3, 0.0.4
References
- secunia.com/advisories/60084 (third-party-advisory)
- trac.torproject.org/projects/tor/ticket/1038
- secunia.com/advisories/60647 (third-party-advisory)
- blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation…
- lists.torproject.org/pipermail/tor-talk/2014-July/034180.html (mailing-list)
- lists.torproject.org/pipermail/tor-announce/2014-July/000094.html (Vendor Advisory, mailing-list)
- lists.torproject.org/pipermail/tor-announce/2014-July/000093.html (mailing-list)