Security Alert (A16-12-01): Vulnerability in Firefox

Description:

Mozilla has published a security advisory to address a vulnerability found in Firefox. This vulnerability is caused by use-after-free error. A remote attacker could entice a user to open a web page with specially crafted content to exploit the vulnerability.

Reports indicate that the vulnerability is being actively exploited in the wild.

Affected Systems:

• Firefox prior to version 50.0.2
• Firefox ESR prior to version 45.5.1 

Impact:

A successful attack could lead to arbitrary code execution 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 50.0.2 for Windows, Macintosh and Linux
  https://www.mozilla.org/en-US/firefox/all.html
  
  
• Firefox ESR 45.5.1 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/security/advisories/
https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/
https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox-esr/
https://www.mozilla.org/en-US/security/advisories/mfsa2016-92/
https://www.hkcert.org/my_url/en/alert/16120101
https://www.us-cert.gov/ncas/current-activity/2016/11/30/Mozilla-Releases-Security-Updates
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9079