UBUNTU-CVE-2014-5117

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    UBUNTU-CVE-2014-5117

    Published: 30 Jul 2014Last Modified: 8 Sept 2025
    Upstream:
    CVE-2014-5117

    Summary:

    Details: 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://ubuntu.com/security/CVE-2014-5117, 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, https://www.cve.org/CVERecord?id=CVE-2014-5117

    Affected packages

    Package

    Name: tor

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.2.4.27-1build0.14.04.1

    Affected versions

    0.2.3.25-1
    0.2.4.19-1
    0.2.4.20-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
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