Home/CVE/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
CVE

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

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.

MEDIUM · CVSS 5.8 EPSS 0.006
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

2
torproject tor<= 0.2.4.22
torproject torall versions
▣

Scoring & Timeline

5.8
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:P/I:P/A:N
Published to NVD30 Jul 2014 · 04:55 PM
⚑

Vendor Advisories

1
suse-csafopenSUSE-SU-2024:10423-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://secunia.com/advisories/60084
http://secunia.com/advisories/60647
https://blog.torproject.org/blog/tor-security-advisory-relay-early-traffic-confirmation-attack
https://lists.torproject.org/pipermail/tor-announce/2014-July/000093.html
https://lists.torproject.org/pipermail/tor-announce/2014-July/000094.htmlVendor Advisory
https://lists.torproject.org/pipermail/tor-talk/2014-July/034180.html
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