Ubuntu 3891-1: systemd vulnerability

    Date18 Feb 2019
    CategoryUbuntu
    3030
    Posted ByLinuxSecurity Advisories
    systemd could be made to crash if it received specially a crafted D-Bus message.
    ==========================================================================
    Ubuntu Security Notice USN-3891-1
    February 18, 2019
    
    systemd vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    systemd could be made to crash if it received specially a crafted
    D-Bus message.
    
    Software Description:
    - systemd: system and service manager
    
    Details:
    
    It was discovered that systemd incorrectly handled certain D-Bus messages.
    A local unprivileged attacker could exploit this in order to crash the
    init process, resulting in a system denial-of-service (kernel panic).
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libsystemd0                     239-7ubuntu10.8
      systemd                         239-7ubuntu10.8
    
    Ubuntu 18.04 LTS:
      libsystemd0                     237-3ubuntu10.13
      systemd                         237-3ubuntu10.13
    
    Ubuntu 16.04 LTS:
      libsystemd0                     229-4ubuntu21.16
      systemd                         229-4ubuntu21.16
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3891-1
      CVE-2019-6454
    
    Package Information:
      https://launchpad.net/ubuntu/+source/systemd/239-7ubuntu10.8
      https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.13
      https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.16
    
    
    
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