Security Alert (A20-02-05): Multiple Vulnerabilities in Firefox

Description:

Mozilla has published two security advisories (MFSA 2020-05 and MFSA 2020-06) to address multiple browser vulnerabilities.  To exploit the vulnerabilities, a remote attacker could entice a user running a vulnerable browser to visit a web page with specially crafted content or open a malicious pdf link from other applications.

Affected Systems:

• Firefox prior to version 73
• Firefox ESR prior to version 68.5

Impact:

Successful exploitation of the vulnerabilities could lead to cross-site scripting, arbitrary code execution or application crash 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 73 for Windows, Macintosh and Linux
  https://www.mozilla.org/en-US/firefox/all/
  
  
• Firefox ESR 68.5 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/mfsa2020-05/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-06/
https://www.hkcert.org/my_url/en/alert/20021204
https://www.us-cert.gov/ncas/current-activity/2020/02/11/mozilla-releases-security-updates-multiple-products
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6796 (to CVE-2020-6801)