Mozilla has published security advisories to address multiple vulnerabilities found in Firefox. These vulnerabilities are caused by memory safety bugs, use-after-free error, buffer overflow, security restriction bypass, fonts render flaw, user interface flaw, and JavaScript parser flaw, etc. A remote attacker could entice a user to open a web page with specially crafted content to exploit the vulnerabilities.
A successful attack could lead to allow arbitrary code execution, cross-site scripting, information disclosure, spoofing or application crash on an affected system.
Mozilla has released new versions of the product to address the issues and they can be downloaded at the following URLs:
Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.hkcert.org/my_url/en/alert/17092901
https://www.us-cert.gov/ncas/current-activity/2017/09/28/Mozilla-Releases-Security-Updates
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7793
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7805
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7810 (to CVE-2017-7825)