UBUNTU-CVE-2012-1016

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    UBUNTU-CVE-2012-1016

    Published: 4 Mar 2013Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-1016
    Aliases:
    USN-2310-1

    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: https://ubuntu.com/security/CVE-2012-1016, http://web.mit.edu/kerberos/www/krb5-1.10/, https://ubuntu.com/security/notices/USN-2310-1, https://www.cve.org/CVERecord?id=CVE-2012-1016

    Affected packages

    Package

    Name: krb5

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-3ubuntu2?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.11.3+dfsg-3ubuntu2

    Affected versions

    1.10.1+dfsg-6.1ubuntu1

    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