Security Alert (A20-11-03): Vulnerability in Firefox

Description:

Mozilla has published a security advisory (MFSA 2020-49) to address a vulnerability 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 78.4.1
• Firefox prior to version 82.0.3

Impact:

Successful exploitation of the vulnerability could allow attackers to trigger a use-after-free error and execute arbitrary code 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 82.0.3 for Windows, Macintosh and Linux
  https://www.mozilla.org/en-US/firefox/all/
  
  
• Firefox ESR 78.4.1 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/mfsa2020-49/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26950