Security Alert (A20-11-06): Multiple Vulnerabilities in Firefox


 

Published on: 18 November 2020

Description:

Mozilla has published two security advisories (MFSA 2020-50 and MFSA 2020-51) to address multiple vulnerabilities in Firefox browser. A remote attacker could 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 78.5
  • Firefox prior to version 83

 

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, cross-site-scripting (XSS), DNS rebinding attack, clickjacking attack, phishing attack, information disclosure, security restriction bypass, or application crash 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 83 for Windows, Macintosh and Linux
    https://www.mozilla.org/en-US/firefox/all/
  • Firefox ESR 78.5 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/mfsa2020-50/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-51/
https://www.hkcert.org/my_url/en/alert/20111801
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15999
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16012
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26951 (to CVE-2020-26953)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26956
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26958 (to CVE-2020-26963)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26965 (to CVE-2020-26969)

 



Tag: Firefox , Mozilla
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