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CVE-2014-5117

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Date: July 30, 2014

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.

Language: C

Severity Score

Related Resources (11)

http://secunia.com/advisories/60647
https://trac.torproject.org/projects/tor/ticket/1038
https://nvd.nist.gov/vuln/detail/CVE-2014-5117
https://lists.torproject.org/pipermail/tor-talk/2014-July/034180.html
https://security-tracker.debian.org/tracker/CVE-2014-5117
https://people.canonical.com/~ubuntu-security/cve/CVE-2014-5117
http://secunia.com/advisories/60084
https://lists.torproject.org/pipermail/tor-announce/2014-July/000094.html
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://www.mend.io/vulnerability-database/CVE-2014-5117

Severity Score

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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