Multiple Vulnerabilities in Mozilla Firefox

Number: AV14-062
Date: 4 September 2014


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


A number of vulnerabilities have been reported in Mozilla Firefox and Thunderbird, which could be exploited by remote attackers to execute arbitrary code or cause a denial of service. One of the vulnerabilities can cause a denial of service via an SVG animation with DOM interaction that triggers incorrect cycle collection.

Mozilla Foundation Security Advisory Numbers: 2014-67, 2014-68, 2014-72

CVE References: CVE-2014-1553, CVE-2014-1554, CVE-2014-1562, CVE-2014-1563, CVE-2014-1567

Affected Versions:
Firefox before 32.0
Firefox ESR 24.x before 24.8 and 31.x before 31.1
Thunderbird 24.x before 24.8 and 31.x before 31.1

Suggested action

Upgrade to Firefox 32, Firefox ESR 24.8, Firefox ESR 31.1, Thunderbird 31.1, Thunderbird 24.8.

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

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