Ubuntu 1290-1: Kerberos vulnerability

    Date07 Dec 2011
    CategoryUbuntu
    37
    Posted ByLinuxSecurity Advisories
    The Kerberos Key Distribution Center (KDC) could be made to crash.
    ==========================================================================
    Ubuntu Security Notice USN-1290-1
    December 08, 2011
    
    krb5 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.10
    
    Summary:
    
    The Kerberos Key Distribution Center (KDC) could be made to crash.
    
    Software Description:
    - krb5: MIT Kerberos Network Authentication Protocol
    
    Details:
    
    Simo Sorce discovered that a NULL pointer dereference existed in
    the Kerberos Key Distribution Center (KDC). An authenticated remote
    attacker could use this to cause a denial of service.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.10:
      krb5-kdc                        1.9.1+dfsg-1ubuntu2.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1290-1
      CVE-2011-1530
    
    Package Information:
      https://launchpad.net/ubuntu/+source/krb5/1.9.1+dfsg-1ubuntu2.2
    
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