Security Alert (A20-08-06): Multiple Vulnerabilities in Firefox


 

Published on: 26 August 2020

  
  

Description:

Mozilla has published three security advisories (MFSA 2020-36, MFSA 2020-37 and MFSA 2020-38) to address multiple vulnerabilities in Firefox browser.  A local attacker may replace the Mozilla Maintenance Service executable with a vulnerable version.  A remote attacker could also entice a user running a vulnerable browser to visit a web page with specially crafted content to exploit the vulnerabilities.

 

Affected Systems:

  • Firefox ESR prior to version 68.12
  • Firefox ESR prior to version 78.2
  • Firefox prior to version 80

 

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, information disclosure, escalation of privilege, security restriction bypass or installation of malicious extension on an affected system.

 

Recommendation:

Mozilla has released new versions of the product to address the issues and they can be downloaded at the following URLs:

  • Firefox 80 for Windows, Macintosh and Linux
    https://www.mozilla.org/en-US/firefox/all/

  • Firefox ESR 68.12 and 78.2 for Windows, Macintosh and Linux
    https://www.mozilla.org/en-US/firefox/organizations/all/

Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

 

More Information:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-37/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-38/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6829
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12400
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12401
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15663 (to CVE-2020-15670)

 



Tag: Firefox , Mozilla
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