Ubuntu 4365-1: Bind vulnerabilities

    Date19 May 2020
    46
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Bind.
    ==========================================================================
    Ubuntu Security Notice USN-4365-1
    May 19, 2020
    
    bind9 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Bind.
    
    Software Description:
    - bind9: Internet Domain Name Server
    
    Details:
    
    Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Bind
    incorrectly limited certain fetches. A remote attacker could possibly use
    this issue to cause Bind to consume resources, leading to a denial of
    service, or possibly use Bind to perform a reflection attack.
    (CVE-2020-8616)
    
    Tobias Klein discovered that Bind incorrectly handled checking TSIG
    validity. A remote attacker could use this issue to cause Bind to crash,
    resulting in a denial of service, or possibly perform other attacks.
    (CVE-2020-8617)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      bind9                           1:9.16.1-0ubuntu2.1
    
    Ubuntu 19.10:
      bind9                           1:9.11.5.P4+dfsg-5.1ubuntu2.2
    
    Ubuntu 18.04 LTS:
      bind9                           1:9.11.3+dfsg-1ubuntu1.12
    
    Ubuntu 16.04 LTS:
      bind9                           1:9.10.3.dfsg.P4-8ubuntu1.16
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4365-1
      CVE-2020-8616, CVE-2020-8617
    
    Package Information:
      https://launchpad.net/ubuntu/+source/bind9/1:9.16.1-0ubuntu2.1
      https://launchpad.net/ubuntu/+source/bind9/1:9.11.5.P4+dfsg-5.1ubuntu2.2
      https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.12
      https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.16
    
    

    LinuxSecurity Poll

    What do you think of the LinuxSecurity Privacy news articles?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/25-what-do-you-think-of-the-linuxsecurity-privacy-news-articles?task=poll.vote&format=json
    25
    radio
    [{"id":"90","title":"Love them!","votes":"90","type":"x","order":"1","pct":78.95,"resources":[]},{"id":"91","title":"I'm indifferent","votes":"18","type":"x","order":"2","pct":15.79,"resources":[]},{"id":"92","title":"Not interested in this topic","votes":"6","type":"x","order":"3","pct":5.26,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.