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    Ubuntu 4398-1: DBus vulnerability

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    DBus could be made to crash if it received specially crafted input.
    ==========================================================================
    Ubuntu Security Notice USN-4398-1
    June 16, 2020
    
    dbus vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    DBus could be made to crash if it received specially crafted input.
    
    Software Description:
    - dbus: simple interprocess messaging system
    
    Details:
    
    Kevin Backhouse discovered that DBus incorrectly handled file descriptors.
    A local attacker could possibly use this issue to cause DBus to crash,
    resulting in a denial of service.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      dbus                            1.12.16-2ubuntu2.1
      libdbus-1-3                     1.12.16-2ubuntu2.1
    
    Ubuntu 19.10:
      dbus                            1.12.14-1ubuntu2.1
      libdbus-1-3                     1.12.14-1ubuntu2.1
    
    Ubuntu 18.04 LTS:
      dbus                            1.12.2-1ubuntu1.2
      libdbus-1-3                     1.12.2-1ubuntu1.2
    
    Ubuntu 16.04 LTS:
      dbus                            1.10.6-1ubuntu3.6
      libdbus-1-3                     1.10.6-1ubuntu3.6
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4398-1
      CVE-2020-12049
    
    Package Information:
      https://launchpad.net/ubuntu/+source/dbus/1.12.16-2ubuntu2.1
      https://launchpad.net/ubuntu/+source/dbus/1.12.14-1ubuntu2.1
      https://launchpad.net/ubuntu/+source/dbus/1.12.2-1ubuntu1.2
      https://launchpad.net/ubuntu/+source/dbus/1.10.6-1ubuntu3.6
    
    

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