# MA-479.052015: MyCERT Advisory - Mozilla Releases Security Updates for Firefox, Firefox ESR, and Thunderbird

**Date:** 13 May 2015  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-479.052015  
**Advisory ID:** MA-479.052015

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#### **1.0 Introduction**
The Mozilla Foundation has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. Mozilla encourages users and administrators to review Mozilla's Security Updates and apply the necessary updates.
**2.0 Impact**
These updates address vulnerabilities that could potentially allow an attacker to cause a denial-of-service condition or steal sensitive information.
**3.0 Affected Products**
The detail lists of the Mozilla products updates are as below:
- Firefox 38
- Firefox ESR 31.7
- Thunderbird 31.7
**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 38**
Advisories can be referred at:
<https://www.mozilla.org/en-GB/security/known-vulnerabilities/firefox/>
Can be downloaded at:
<https://www.mozilla.org/en-GB/firefox/new/>
**4.2 Mozilla Firefox ESR 31.7**
Advisories can be referred at:
<https://www.mozilla.org/en-GB/security/known-vulnerabilities/firefox-esr/>
Can be downloaded at:
<https://www.mozilla.org/en-US/firefox/organizations/all/>
**4.3 Mozilla Thunderbird 31.7**
Advisories can be referred at:
<https://www.mozilla.org/en-US/security/known-vulnerabilities/thunderbird/>
Can be downloaded at:
<https://www.mozilla.org/en-GB/thunderbird/>
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#5d3e243f382f6464641d3e243f382f2e383e282f342924733024) or [[email protected]](/cdn-cgi/l/email-protection#b7daced4d2c5c3f7daced4d2c5c399d8c5d099dace) 
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**5.0 References**
- Mozilla Releases Security Updates for Firefox, Firefox ESR, and Thunderbird
<https://www.us-cert.gov/ncas/current-activity/2015/05/12/Mozilla-Releases-Security-Updates-Firefox-Firefox-ESR-and>
- Mozilla Foundation Security Advisories
<https://www.mozilla.org/en-US/security/advisories/>