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             AUSCERT External Security Bulletin Redistribution

                    USN-4234-1: Firefox vulnerabilities
                              10 January 2020


        AusCERT Security Bulletin Summary

Product:           Firefox
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Cross-site Scripting            -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
                   Reduced Security                -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-17026 CVE-2019-17025 CVE-2019-17024
                   CVE-2019-17023 CVE-2019-17022 CVE-2019-17020
                   CVE-2019-17017 CVE-2019-17016 

Reference:         ESB-2020.0078

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

USN-4234-1: Firefox vulnerabilities
9 January 2020

firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 19.10
  o Ubuntu 19.04
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS


Firefox could be made to crash or run programs as your login if it opened a
malicious website.

Software Description

  o firefox - Mozilla Open Source web browser


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, obtain sensitive information, bypass
Content Security Policy (CSP) restrictions, conduct cross-site scripting (XSS)
attacks, or execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package

Ubuntu 19.10
    firefox - 72.0.1+build1-0ubuntu0.19.10.1
Ubuntu 19.04
    firefox - 72.0.1+build1-0ubuntu0.19.04.1
Ubuntu 18.04 LTS
    firefox - 72.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
    firefox - 72.0.1+build1-0ubuntu0.16.04.1

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

After a standard system update you need to restart Firefox to make all the
necessary changes.


  o CVE-2019-17016
  o CVE-2019-17017
  o CVE-2019-17020
  o CVE-2019-17022
  o CVE-2019-17023
  o CVE-2019-17024
  o CVE-2019-17025
  o CVE-2019-17026

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