Description:

Mozilla has published security advisories to address multiple vulnerabilities found in Firefox. A remote attacker could entice a user running a vulnerable browser to open a web page with specially crafted content to exploit the vulnerabilities.

Affected Systems:

• Firefox prior to version 67
• Firefox ESR prior to version 60.7

Impact:

Successful exploitation of the vulnerabilities could lead to arbitrary code execution, application crash, information disclosure, 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 67 for Windows, Macintosh and Linux
  https://www.mozilla.org/en-US/firefox/all/
  
  
• Firefox ESR 60.7 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/mfsa2019-13/
https://www.mozilla.org/en-US/security/advisories/mfsa2019-14/
https://www.hkcert.org/my_url/en/alert/19052201
https://www.us-cert.gov/ncas/current-activity/2019/05/21/Mozilla-Releases-Security-Updates-Firefox
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18511
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5798
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7317
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9797
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9800
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9814 (to CVE-2019-9821)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11691 (to CVE-2019-11701)