Description:

Mozilla has published the advisories (MFSA2022-04 and MFSA2022-05) 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 Windows versions prior to version 91.6
• Firefox Windows versions prior to version 97

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, elevation of privilege, security feature 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 97 for Windows
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
• Firefox ESR 91.6 for 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/mfsa2022-04/
• https://www.mozilla.org/en-US/security/advisories/mfsa2022-05/
• https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20220209
• https://www.cisa.gov/uscert/ncas/current-activity/2022/02/08/mozilla-releases-security-updates-firefox-and-firefox-esr
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0511
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22753 (to CVE-2022-22764)