Some vulnerabilities have been reported in Mozilla Firefox, which can be exploited by malicious people to conduct cross-site scripting attacks, bypass certain security restrictions, or compromise a user's system.

1) An error exists when handling out-of-memory conditions. This can be exploited to trigger a memory corruption and execute arbitrary code via a specially crafted web page.

2) Multiple errors in the browser engine can be exploited to corrupt memory and potentially execute arbitrary code.

3) An error in the implementation of Web Worker array data types when processing posted messages can be exploited to corrupt memory and potentially execute arbitrary code.

4) An error exists in the implementation of the "showModalDialog()" function. This can be exploited to potentially execute arbitrary JavaScript code in the context of a domain calling the affected function with external parameters.

5) An error exists when processing SVG documents served with a Content-Type of "application/octet-stream". This can be exploited to execute arbitrary JavaScript code in the context of a domain hosting the SVG document.

6) Multiple errors in the browse engine can be exploited to corrupt memory and potentially execute arbitrary code.

7) An error related to the implementation of the "addEventListener()" and "setTimeout()" methods can be exploited to bypass the same-origin policy.

This is related to vulnerability #3 in:
SA26095

8) An error in the processing of stylesheets used in XUL documents can be exploited to pollute the XUL cache and change browser style attributes.

9) An error related to the XMLHttpRequestSpy object can be exploited to execute arbitrary JavaScript code with chrome privileges.

The vulnerabilities are reported in versions prior to 3.5.8 and 3.0.18.

Solution
Update to version 3.0.18 or 3.5.8.
Further details available in Customer Area

Provided and/or discovered by
1) Alin Rad Pop, Secunia Research
3) Orlando Barrera II of SecTheory, reported via ZDI
4) an anonymous researcher, reported via ZDI

The vendor also credits:
2) Henri Sivonen, Boris Zbarsky, Zack Weinberg, Bob Clary, Martijn Wargers, and Paul Nickerson
4) Hidetake Jo, Microsoft Vulnerability Research
5) Georgi Guninski, Mozilla
6) Bob Clary and Carsten Book
7, 9) moz_bug_r_a4
8) Wladimir Palant

Changelog
Further details available in Customer Area

Original Advisory
Mozilla:
http://www.mozilla.org/security/announce/2010/mfsa2010-01.html
http://www.mozilla.org/security/announce/2010/mfsa2010-02.html
http://www.mozilla.org/security/announce/2010/mfsa2010-03.html
http://www.mozilla.org/security/announce/2010/mfsa2010-04.html
http://www.mozilla.org/security/announce/2010/mfsa2010-05.html
http://www.mozilla.org/security/announce/2010/mfsa2010-11.html
http://www.mozilla.org/security/announce/2010/mfsa2010-12.html
http://www.mozilla.org/security/announce/2010/mfsa2010-14.html
http://www.mozilla.org/security/announce/2010/mfsa2010-21.html

Secunia Research:
http://secunia.com/secunia_research/2009-45/

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-10-019/
http://www.zerodayinitiative.com/advisories/ZDI-10-046/

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area