CVE-2012-1016

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    CVE-2012-1016

    Published: 5 Mar 2013Last Modified: 10 Apr 2026

    Summary:

    Details: The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

    References: http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527, http://secunia.com/advisories/55040, http://web.mit.edu/kerberos/www/krb5-1.10/, https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c, https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c

    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