# MA-638.092016: MyCERT Advisory - Mozilla Releases Security Updates

**Date:** 22 Sep 2016  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-638.092016  
**Advisory ID:** MA-638.092016

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**1.0     Introduction**
Mozilla has released security updates to address multiple vulnerabilities in Firefox and Firefox ESR. Users and administrators are encouraged to review the Mozilla Security Advisories for Firefox and Firefox ESR and apply the necessary updates.
**2.0     Impact**
These updates address vulnerabilities that could potentially allow an attacker to take control of an affected system.
**3.0     Affected Products**
The detail lists of the Mozilla affected products are as below:
- prior versions of Firefox 49
- prior versions of Firefox ESR 45.4
**4.0     Recommendation**
MyCERT highly recommends users of these applications to upgrade to the latest version of the affected products. The following updates are available: â€¨
**4.1 Mozilla Firefox 49â€¨**
Advisories can be referred at:
<https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/>
Can be downloaded at: â€¨
<https://www.mozilla.org/en-GB/firefox/new/>
â€¨**4.2 Mozilla Firefox ESR 45.3â€¨**
Advisories can be referred at: â€¨
<https://www.mozilla.org/en-US/security/advisories/mfsa2016-86/>
Can be downloaded at:â€¨
<https://www.mozilla.org/en-US/firefox/organizations/all/>
â€¨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#c0a3b9a2a5b2f9f9f980a3b9a2a5b2b3a5a3b5b2a9b4b9eeadb9) or [[email protected]](/cdn-cgi/l/email-protection#e68b9f85839492a68b9f85839492c8899481c88b9f) â€¨
Phone : 1-300-88-2999 (monitored during business hours)â€¨
Fax : +603 89453442 â€¨
Handphone : +60 19 2665850 (24x7 call incident reporting)â€¨
SMS : CYBER999 REPORT EMAIL COMPLAINT to 15888â€¨
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**5.0     References**
> - Mozilla Releases Security Updates:
>   <https://www.us-cert.gov/ncas/current-activity/2016/09/20/Mozilla-Releases-Security-Updates>
>
> - Mozilla Foundation Security Advisories:
>   <https://www.mozilla.org/en-US/security/advisories/>
> - Known Vulnerabilities in Mozilla Products:
>   <https://www.mozilla.org/en-US/security/known-vulnerabilities/>