Ubuntu 4263-1: Sudo vulnerability

    Date 03 Feb 2020
    Posted By LinuxSecurity Advisories
    Sudo could allow unintended access to the administrator account.
    Ubuntu Security Notice USN-4263-1
    February 03, 2020
    sudo vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    Sudo could allow unintended access to the administrator account.
    Software Description:
    - sudo: Provide limited super user privileges to specific users
    Joe Vennix discovered that Sudo incorrectly handled memory operations when
    the pwfeedback option is enabled. A local attacker could possibly use this
    issue to obtain unintended access to the administrator account.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 19.10:
      sudo                            1.8.27-1ubuntu4.1
      sudo-ldap                       1.8.27-1ubuntu4.1
    Ubuntu 18.04 LTS:
      sudo                            1.8.21p2-3ubuntu1.2
      sudo-ldap                       1.8.21p2-3ubuntu1.2
    Ubuntu 16.04 LTS:
      sudo                            1.8.16-0ubuntu1.9
      sudo-ldap                       1.8.16-0ubuntu1.9
    In general, a standard system update will make all the necessary changes.
    Package Information:

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