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    Ubuntu 4530-1: Debian-LAN vulnerabilities

    Date
    100
    Posted By
    Debian-LAN could be made to change Kerberos user passwords or run programs as an administrator.
    ==========================================================================
    Ubuntu Security Notice USN-4530-1
    September 22, 2020
    
    debian-lan-config vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.04 LTS
    
    Summary:
    
    Debian-LAN could be made to change Kerberos user passwords or run programs
    as an administrator.
    
    Software Description:
    - debian-lan-config: FAI config space for the Debian-LAN system
    
    Details:
    
    Wolfgang Schweer discovered that Debian-LAN did not properly handle ACLs
    for the Kerberos admin server. A local attacker could possibly use this
    issue to change the passwords of other users, leading to root privilege
    escalation. (CVE-2019-3467)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.04 LTS:
      debian-lan-config               0.23+deb9u1build0.18.04.1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4530-1
      CVE-2019-3467
    
    Package Information:
      https://launchpad.net/ubuntu/+source/debian-lan-config/0.23+deb9u1build0.18.04.1
    
    
    

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