Description:
Mozilla has published the advisories (MFSA2021-43, MFSA2021-44 and MFSA2021-45) 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 78.15
- Firefox ESR Windows versions prior to version 91.2
- Firefox Windows versions prior to version 93
Impact:
Successful exploitation of the vulnerabilities could lead to arbitrary code execution, denial of service, information disclosure, 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 93 (Windows)
https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
- Firefox ESR 78.15 and 91.2 (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/mfsa2021-43/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-44/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-45/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32810
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38496 (to CVE-2021-38501)