Ubuntu 3801-2: Firefox regressions

    Date23 Nov 2018
    Posted ByAnthony Pell
    USN-3801-1 caused some minor regressions in Firefox.
    Ubuntu Security Notice USN-3801-2
    November 23, 2018
    firefox regressions
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    USN-3801-1 caused some minor regressions in Firefox.
    Software Description:
    - firefox: Mozilla Open Source web browser
    USN-3801-1 fixed vulnerabilities in Firefox. The update introduced various
    minor regressions. This update fixes the problems.
    We apologize for the inconvenience.
    Original advisory details:
     Multiple security issues were discovered in Firefox. If a user were
     tricked in to opening a specially crafted website, an attacker could
     potentially exploit these to cause a denial of service, bypass CSP
     restrictions, spoof the protocol registration notification bar, leak
     SameSite cookies, bypass mixed content warnings, or execute arbitrary
     code. (CVE-2018-12388, CVE-2018-12390, CVE-2018-12392, CVE-2018-12393,
     CVE-2018-12398, CVE-2018-12399, CVE-2018-12401, CVE-2018-12402,
     Multiple security issues were discovered with WebExtensions in Firefox.
     If a user were tricked in to installing a specially crafted extension, an
     attacker could potentially exploit these to bypass domain restrictions,
     gain additional privileges, or run content scripts in local pages without
     permission. (CVE-2018-12395, CVE-2018-12396, CVE-2018-12397)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 18.10:
      firefox                         63.0.3+build1-0ubuntu0.18.10.1
    Ubuntu 18.04 LTS:
      firefox                         63.0.3+build1-0ubuntu0.18.04.1
    Ubuntu 16.04 LTS:
      firefox                         63.0.3+build1-0ubuntu0.16.04.1
    Ubuntu 14.04 LTS:
      firefox                         63.0.3+build1-0ubuntu0.14.04.1
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    Package Information:
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