CVE-2011-1529

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    CVE-2011-1529

    Published: 20 Oct 2011Last Modified: 10 Apr 2026

    Summary:

    Details: The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors.

    References: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt, http://www.mandriva.com/security/advisories?name=MDVSA-2011:159, http://www.mandriva.com/security/advisories?name=MDVSA-2011:160, http://www.redhat.com/support/errata/RHSA-2011-1379.html, http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html, http://www.kb.cert.org/vuls/id/659251

    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
    CVE-2011-1529 | CVE-DB