CVE-2012-4436

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    CVE-2012-4436

    Published: 22 Oct 2012Last Modified: 10 Apr 2026

    Summary:

    Details: Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.

    References: http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html, http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc, http://www.openwall.com/lists/oss-security/2012/09/19/2, http://www.openwall.com/lists/oss-security/2012/09/20/4

    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