CVE-2011-2778

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    CVE-2011-2778

    Published: 23 Dec 2011Last Modified: 10 Apr 2026

    Summary:

    Details: Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.

    References: http://www.debian.org/security/2011/dsa-2363, https://blog.torproject.org/blog/tor-02235-released-security-patches, https://blog.torproject.org/blog/tor-02235-released-security-patches

    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