Linux Security
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    Linux Security

    Ubuntu 4521-1: pam_tacplus vulnerability

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    pam_tacplus could be made to expose sensitive information.
    Ubuntu Security Notice USN-4521-1
    September 21, 2020
    libpam-tacplus vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    pam_tacplus could be made to expose sensitive information.
    Software Description:
    - libpam-tacplus: PAM module for using TACACS+ as an authentication service
    It was discovered that pam_tacplus did not properly manage shared
    secrets if DEBUG loglevel and journald are used. A remote attacker could
    use this issue to expose sensitive information.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 20.04 LTS:
      libpam-tacplus                  1.3.8-2+deb8u1build0.20.04.1
    Ubuntu 18.04 LTS:
      libpam-tacplus                  1.3.8-2+deb8u1build0.18.04.1
    Ubuntu 16.04 LTS:
      libpam-tacplus                  1.3.8-2+deb8u1build0.16.04.1
    In general, a standard system update will make all the necessary changes.
    Package Information:

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