Security Alert (A23-11-17): Multiple Vulnerabilities in Firefox

Description:

Mozilla has published the advisories (MFSA2023-49 and MFSA2023-50) 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 Windows versions prior to version 120
• Firefox ESR Windows versions prior to version 115.5

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, denial of service, information disclosure, spoofing or security restriction bypass 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 120 (Windows)
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
• Firefox ESR 115.5 (Windows)
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr

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/mfsa2023-49/
• https://www.mozilla.org/en-US/security/advisories/mfsa2023-50/
• https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20231122
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6204 (to CVE-2023-6213)