Operating System:

[Ubuntu]

Published:

26 September 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3627
                     USN-4140-1: Firefox vulnerability
                             26 September 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           firefox
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11754  

Reference:         ASB-2019.0269

Original Bulletin: 
   https://usn.ubuntu.com/4140-1/

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USN-4140-1: Firefox vulnerability

25 September 2019

firefox vulnerability

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

  o Ubuntu 19.04
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS

Summary

Firefox could be made to hijack the mouse pointer it if opened a malicious
website.

Software Description

  o firefox - Mozilla Open Source web browser

Details

It was discovered that no user notification was given when pointer lock is
enabled. If a user were tricked in to opening a specially crafted website, an
attacker could potentially exploit this to hijack the mouse pointer and confuse
users.

Update instructions

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

Ubuntu 19.04
    firefox - 69.0.1+build1-0ubuntu0.19.04.1
Ubuntu 18.04 LTS
    firefox - 69.0.1+build1-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
    firefox - 69.0.1+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.

References

  o CVE-2019-11754

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===========================================================================
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===========================================================================
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