CVE-2005-2643

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    CVE-2005-2643

    Published: 23 Aug 2005Last Modified: 10 Apr 2026

    Summary:

    Details: Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-alpha and earlier, does not reject certain weak keys when using ephemeral Diffie-Hellman (DH) handshakes, which allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit.

    References: http://archives.seul.org/or/announce/Aug-2005/msg00002.html, http://secunia.com/advisories/16424, http://secunia.com/advisories/16424, http://marc.info/?l=bugtraq&m=112448002732443&w=2, http://securitytracker.com/id?1014739

    Affected packages

    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