# MA-528.102015: MyCERT Advisory - Mozilla Releases Security Update for Firefox

**Date:** 16 Oct 2015  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-528.102015  
**Advisory ID:** MA-528.102015

---

#### **1.0 Introduction**
Mozilla has released Firefox 41.0.2 to address a security vulnerability. Exploitation of this vulnerability may allow a remote attacker to obtain sensitive information from an affected system.
**2.0 Impact**
The vulnerability impacting each software are listed below:
- the fetch() API did not correctly implement the Cross-Origin Resource Sharing (CORS) specification, allowing a malicious page to access private data from other origins.
**3.0 Affected Product**
- Firefox
**4.0 Recommendation**
MyCERT highly recommended users of these applications to upgrade to the latest version of the affected products. The following updates are available:
> **4.1 Mozilla Firefox**
>
> Advisories:
> <https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox/>
>
> Download:
> <https://www.mozilla.org/en-GB/firefox/new/>
Generally, MyCERT advises the users of this software to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact MyCERT through the following channels:
E-mail : [[email protected]](/cdn-cgi/l/email-protection#0e6d776c6b7c3737374e6d776c6b7c7d6b6d7b7c677a77206377) or [[email protected]](/cdn-cgi/l/email-protection#d8b5a1bbbdaaac98b5a1bbbdaaacf6b7aabff6b5a1) 
Phone : 1-300-88-2999 (monitored during business hours)
Fax : +603 89453442 
Handphone : +60 19 2665850 (24x7 call incident reporting)
SMS : CYBER999 REPORT EMAIL COMPLAINT to 15888
Business Hours : Mon - Fri 09:00 AM - 18:00 PM MYT
Web : [https://www.mycert.org.my](https://www.mycert.org.my/)
Twitter : <http://www.twitter.com/mycert>
Facebook: <http://www.facebook.com/mycert.org.my>
Cyber999 Mobile Apps:  [IOS Users](https://itunes.apple.com/my/app/cyber999-mobile-application/id888552400?mt=8&ign-mpt=uo%3D4) or [Android Users](https://play.google.com/store/apps/details?id=my.cyber999.mobile)
**5.0 References**
- <https://www.us-cert.gov/ncas/current-activity/2015/10/15/Mozilla-Releases-Security-Update-Firefox>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2015-115/>