Ubuntu 4154-1: Sudo vulnerability

    Date14 Oct 2019
    Posted ByLinuxSecurity Advisories
    Sudo could be made to run commands as root if it called with a specially crafted user ID.
    Ubuntu Security Notice USN-4154-1
    October 14, 2019
    sudo vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 19.04
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    Sudo could be made to run commands as root if it called with
    a specially crafted user ID.
    Software Description:
    - sudo: Provide limited super user privileges to specific users
    Joe Vennix discovered that Sudo incorrectly handled
    certain user IDs. An attacker could potentially exploit this
    to execute arbitrary commands as the root user.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 19.04:
      sudo                            1.8.27-1ubuntu1.1
      sudo-ldap                       1.8.27-1ubuntu1.1
    Ubuntu 18.04 LTS:
      sudo                            1.8.21p2-3ubuntu1.1
      sudo-ldap                       1.8.21p2-3ubuntu1.1
    Ubuntu 16.04 LTS:
      sudo                            1.8.16-0ubuntu1.8
      sudo-ldap                       1.8.16-0ubuntu1.8
    Ubuntu 14.04 ESM:
      sudo                            1.8.9p5-1ubuntu1.5+esm2
      sudo-ldap                       1.8.9p5-1ubuntu1.5+esm2
    Ubuntu 12.04 ESM:
      sudo                            1.8.3p1-1ubuntu3.8
      sudo-ldap                       1.8.3p1-1ubuntu3.8
    In general, a standard system update will make all the necessary changes.
    Package Information:
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