Operating System:

[Ubuntu]

Published:

11 January 2021

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0088
                     USN-4687-1: Firefox vulnerability
                              11 January 2021

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

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

Product:           firefox
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-16044  

Reference:         ESB-2021.0081
                   ESB-2021.0067

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-4687-1

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USN-4687-1: Firefox vulnerability
08 January 2021

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

  o Ubuntu 20.10
  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS
  o Ubuntu 16.04 LTS

Packages

  o firefox - Mozilla Open Source web browser

Details

A use-after-free was discovered in Firefox when handling SCTP packets.
An attacker could potentially exploit this to cause a denial of service,
or execute arbitrary code.

Update instructions

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

Ubuntu 20.10

  o firefox - 84.0.2+build1-0ubuntu0.20.10.1

Ubuntu 20.04

  o firefox - 84.0.2+build1-0ubuntu0.20.04.1

Ubuntu 18.04

  o firefox - 84.0.2+build1-0ubuntu0.18.04.1

Ubuntu 16.04

  o firefox - 84.0.2+build1-0ubuntu0.16.04.1

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

References

  o CVE-2020-16044

- --------------------------END INCLUDED TEXT--------------------

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