Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allow remote attackers to cause a denial of service (application crash) via a crafted WAV file that is not properly handled by the nsCString::CharAt function.

The Web Workers implementation in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 does not properly restrict XMLHttpRequest calls, which allows remote attackers to bypass the Same Origin Policy and conduct cross-site scripting (XSS) attacks via unspecified vectors.

Use-after-free vulnerability in the nsINode::GetParentNode function in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors involving a DOM modification at the time of a SetBody mutation event.

Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 do not properly handle the interaction between FRAME elements and history, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors involving spoofing a relative location in a previously visited document.

Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 use an incorrect URI within unspecified comparisons during enforcement of the Same Origin Policy, which allows remote attackers to conduct cross-site scripting (XSS) attacks or install arbitrary add-ons via a crafted web site.

Heap-based buffer underflow in the cryptojs_interpret_key_gen_type function in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted Certificate Request Message Format (CRMF) request.

The XrayWrapper implementation in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 does not properly address the possibility of an XBL scope bypass resulting from non-native arguments in XBL function calls, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging access to an unprivileged object.

The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allows remote attackers to execute arbitrary JavaScript code or conduct cross-site scripting (XSS) attacks via vectors related to Certificate Request Message Format (CRMF) request generation.

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbird ESR 17.x before 17.0.8, and SeaMonkey before 2.20 do not properly restrict local-filesystem access by Java applets, which allows user-assisted remote attackers to read arbitrary files by leveraging a download to a fixed pathname or other predictable pathname.