Vulnerability Details : 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.
Exploit prediction scoring system (EPSS) score for CVE-2014-5117
Probability of exploitation activity in the next 30 days: 0.62%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-5117
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST |
References for CVE-2014-5117
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https://trac.torproject.org/projects/tor/ticket/1038
#1038 (Problem facing connecting a Tor client to a Tor hidden server) – Tor Bug Tracker & Wiki
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https://lists.torproject.org/pipermail/tor-announce/2014-July/000094.html
[tor-announce] Tor security advisory: "relay early" traffic confirmation attackVendor Advisory
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https://lists.torproject.org/pipermail/tor-announce/2014-July/000093.html
[tor-announce] Tor 0.2.4.23 is released
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https://lists.torproject.org/pipermail/tor-talk/2014-July/034180.html
[tor-talk] Tor 0.2.5.6-alpha is out
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http://secunia.com/advisories/60647
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https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack
Tor security advisory: "relay early" traffic confirmation attack | Tor Blog
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http://secunia.com/advisories/60084
Sign in
Products affected by CVE-2014-5117
- cpe:2.3:a:torproject:tor:*:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.3.21:rc:*:*:*:*:*:*
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- cpe:2.3:a:torproject:tor:0.2.2.33:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.32:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.31:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.30:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.35:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.34:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.33:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.32:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.22:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.21:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.20:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.0.17:*:*:*:*:*:*:*
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- cpe:2.3:a:torproject:tor:0.2.3:*:*:*:*:*:*:*
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- cpe:2.3:a:torproject:tor:0.0.2:pre15:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.2:pre14:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.3.19:rc:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.3.17:beta:*:*:*:*:*:*
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- cpe:2.3:a:torproject:tor:0.2.2.35:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.28:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.26:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.21:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.19:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.30:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.2.18:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.25:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.23:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.9.5:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.7.3:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.2:pre21:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.2:pre19:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.3.18:rc:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.3.16:alpha:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.38:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.36:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.34:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.29:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.27:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.20:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.2.18:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.2.0.31:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.2.19:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.2.17:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.26:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.1.24:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.1.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.9.6:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.9.4:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:0.0.8.1:*:*:*:*:*:*:*
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