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    Ubuntu 3956-1: Bind vulnerability

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    Bind could be made to consume resources if it received specially crafted network traffic.
    Ubuntu Security Notice USN-3956-1
    April 25, 2019
    bind9 vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 19.04
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    Bind could be made to consume resources if it received specially crafted
    network traffic.
    Software Description:
    - bind9: Internet Domain Name Server
    It was discovered that Bind incorrectly handled limiting the number of
    simultaneous TCP clients. A remote attacker could possibly use this issue
    to cause Bind to consume resources, leading to a denial of service.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 19.04:
      bind9                           1:9.11.5.P1+dfsg-1ubuntu2.3
    Ubuntu 18.10:
      bind9                           1:9.11.4+dfsg-3ubuntu5.3
    Ubuntu 18.04 LTS:
      bind9                           1:9.11.3+dfsg-1ubuntu1.7
    Ubuntu 16.04 LTS:
      bind9                           1:9.10.3.dfsg.P4-8ubuntu1.14
    In general, a standard system update will make all the necessary changes.
    Package Information:

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