Description:

Mozilla has published the advisories (MFSA2023-19 and MFSA2023-20) 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 114
• Firefox ESR Windows versions prior to version 102.12

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, security restriction bypass or spoofing 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 114 (Windows)
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
• Firefox ESR 102.12 (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/mfsa2023-19/
• https://www.mozilla.org/en-US/security/advisories/mfsa2023-20/
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34414 (to CVE-2023-34417)