Description:

Mozilla has published a security advisory to address a vulnerability found in Firefox. This vulnerability is caused a problem in fetch() API that did not correctly implement the Cross-Origin Resource Sharing(CORS) specification. A remote attacker could entice a user to open a web page with specially crafted content to exploit the vulnerability.

Affected Systems:

• Firefox prior to version 41.0.2

Impact:

A successful attack could lead to information disclosure on an affected system.

Recommendation:

Mozilla has released new version of the product to address the issue and they can be downloaded at the following URLs:

• Firefox 41.0.2 for Windows, Macintosh and Linux
  http://www.mozilla.org/en-US/firefox/all.html

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/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/
https://www.mozilla.org/en-US/firefox/41.0.2/releasenotes/
https://www.hkcert.org/my_url/en/alert/15101601
https://www.us-cert.gov/ncas/current-activity/2015/10/15/Mozilla-Releases-Security-Update-Firefox
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7184