Mozilla Thunderbird < 31.4 Multiple Vulnerabilities

Versions of Mozilla Thunderbird prior to 31.4 are prone to the following vulnerabilities :

• Multiple unspecified memory safety issues exist within the browser engine. (CVE-2014-8634, CVE-2014-8635)
• A flaw exists in ‘navigator.sendBeacon()’ in which it does not follow the cross-origin resource sharing specification. This results in requests from ‘sendBeacon()’ lacking an ‘origin’ header. This allows malicious sites to perform XSRF attacks. (CVE-2014-8638)
• A flaw exists when receiving 407 Proxy Authentication responses with a ‘set-cookie’ header. This can allow a session-fixation attack. (CVE-2014-8639)