Ubuntu 4421-1: Thunderbird vulnerabilities

    Date 08 Jul 2020
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in Thunderbird.
    Ubuntu Security Notice USN-4421-1
    July 08, 2020
    thunderbird 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
    Several security issues were fixed in Thunderbird.
    Software Description:
    - thunderbird: Mozilla Open Source mail and newsgroup client
    Multiple security issues were discovered in Thunderbird. If a user were
    tricked in to opening a specially crafted website in a browsing context,
    an attacker could potentially exploit these to cause a denial of service,
    obtain sensitive information, or execute arbtirary code. (CVE-2020-12405,
    CVE-2020-12406, CVE-2020-12410, CVE-2020-12417, CVE-2020-12418,
    CVE-2020-12419, CVE-2020-12420)
    It was discovered that Thunderbird would continue an unencrypted
    connection when configured to use STARTTLS for IMAP if the server
    responded with PREAUTH. A remote attacker could potentially exploit
    this to perform a person-in-the-middle attack in order to obtain
    sensitive information. (CVE-2020-12398)
    It was discovered that NSS showed timing differences when performing DSA
    signatures. An attacker could potentially exploit this to obtain private
    keys using a timing attack. (CVE-2020-12399)
    It was discovered that when performing add-on updates, certificate chains
    not terminating with built-in roots were silently rejected. This could
    result in add-ons becoming outdated. (CVE-2020-12421)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 20.04 LTS:
      thunderbird                     1:68.10.0+build1-0ubuntu0.20.04.1
    Ubuntu 19.10:
      thunderbird                     1:68.10.0+build1-0ubuntu0.19.10.1
    Ubuntu 18.04 LTS:
      thunderbird                     1:68.10.0+build1-0ubuntu0.18.04.1
    Ubuntu 16.04 LTS:
      thunderbird                     1:68.10.0+build1-0ubuntu0.16.04.1
    After a standard system update you need to restart Thunderbird to make
    all the necessary changes.
      CVE-2020-12398, CVE-2020-12399, CVE-2020-12405, CVE-2020-12406,
      CVE-2020-12410, CVE-2020-12417, CVE-2020-12418, CVE-2020-12419,
      CVE-2020-12420, CVE-2020-12421
    Package Information:

    LinuxSecurity Poll

    Are you planning to use the 1Password password manager now that it is available to Linux users?

    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).
    [{"id":"122","title":"Yes","votes":"1","type":"x","order":"1","pct":25,"resources":[]},{"id":"123","title":"No ","votes":"2","type":"x","order":"2","pct":50,"resources":[]},{"id":"124","title":"Not sure at the moment","votes":"1","type":"x","order":"3","pct":25,"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
    bottom 200


    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

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