Multiple Vulnerabilities in Mozilla Firefox

Number: AV15-003
Date: 15 January 2015


The purpose of this advisory is to raise awareness of critical vulnerabilities in Mozilla Firefox, SeaMonkey and Thunderbird for which upgrades are now available.


A number of vulnerabilities have been reported in Mozilla Firefox, SeaMonkey and Thunderbird which could be exploited by remote attackers to execute arbitrary code or cause a denial of service.

Mozilla Foundation Security Advisory Numbers: 2015-01, 2015-02, 2015-03, 2015-04, 2015-05, 2015-06, 2015-07, 2015-08, 2015-09

CVE References: CVE-2014-8634, CVE-2014-8635, CVE-2014-8637, CVE-2014-8638, CVE-2014-8639, CVE-2014-8640, CVE-2014-8641, CVE-2014-8643, CVE-2014-8642, CVE-2014-8636

Affected Versions:

Suggested Action

Upgrade to Firefox 35, Firefox ESR 31.4, SeaMonkey 2.32, Thunderbird 31.4.

CCIRC recommends that systems administrators identify affected products in their environment and follow their patch management process accordingly.


Note to Readers

In support of Public Safety's mission to build a safe and resilient Canada, CCIRC's mandate is to help ensure the security and resilience of the vital non-federal government cyber systems that underpin Canada's national security, public safety and economic prosperity. As Canada's computer security incident response team, CCIRC is Canada's national coordination centre for the prevention and mitigation of, preparedness for, response to, and recovery from cyber incidents on non-federal government systems. It does this by providing authoritative advice and support, and coordinating information sharing and incident response.

Please note, CCIRC PGP key has recently been updated.

For general information, please contact Public Safety Canada's Public Affairs division at:

Telephone: 613-944-4875 or 1-800-830-3118
Fax: 613-998-9589

Date modified: