Multiple serious vulnerabilities have been found in Mozilla Firefox before 37.0, Mozilla Firefox ESR 31.x before 31.6, Mozilla Thunderbird before 31.6. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause a denial of service (heap memory corruption) and bypass an intended user-confirmation requirement.

Below is a complete list of vulnerabilities

1. Improper resource:URLs restrictions, which can lead to execution arbitrary JavaScript code to bypass the Same Origin Policy;
2. Multiple unspecified vulnerabilities in the browser engine can be exploited via unknown vectors;
3. Lack of HTTPS session enforcement for lightweight theme add-on installations in Mozilla Firefox before 37.0 can lead to man-in-the-middle attacks;
4. The QCMS implementation in Mozilla Firefox can be exploited via an image that is improperly handled during transformation;
5. The webrtc::VPMContentAnalysis::Release function in the WebRTC implementation in Mozilla Firefox before 37.0 can be exploited via unspecified vectors;
6. The navigator.sendBeacon implementation can be exploited via a crafted web site;
7. The Off Main Thread Compositing (OMTC) implementation in Mozilla Firefox before 37.0 can be exploited via vectors that trigger rendering of 2D graphics content;
8. The HTMLSourceElement::BindToTree function in Mozilla Firefox before 37.0 can be exploited via a crafted HTML document containing a SOURCE element.

Mozilla Firefox before 37.0
Mozilla Firefox ESR 31.x before 31.6
Mozilla Thunderbird before 31.6

Update to latest version
Get Mozilla Thunderbird
Get Mozilla Firefox ESR
Get Mozilla Firefox

Mozilla Foundation Security Advisories

CVE-2015-0812
CVE-2015-0813
CVE-2015-0810
CVE-2015-0811
CVE-2015-0815
CVE-2015-0814
CVE-2015-0805
CVE-2015-0806
CVE-2015-0804
CVE-2015-0816
CVE-2015-0807
CVE-2015-0808