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TITLE:
Mozilla Firefox Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA36671

VERIFY ADVISORY:
http://secunia.com/advisories/36671/

DESCRIPTION:
Some vulnerabilities have been reported in Mozilla Firefox, which can
be exploited by malicious people to bypass certain security
restrictions, conduct spoofing attacks, or compromise a vulnerable
system.

1) Multiple errors in the browser and JavaScript engines can be
exploited to corrupt memory.

Successful exploitation may allow execution of arbitrary code.

2) The warning dialog displayed when adding or removing security
modules via pkcs11.addmodule or pkcs11.deletemodule does not contain
enough information. This can be exploited to potentially trick a user
into installing a malicious PKCS11 module.

NOTE: This vulnerability does not affect 3.5.x versions.

3) An error exists when processing operations performed on the
columns of a XUL tree element. This can be exploited to dereference
freed memory via a pointer owned by a column of the XUL tree
element.

Successful exploitation of this vulnerability may allow execution of
arbitrary code.

4) An error exists when displaying text in the location bar using the
default Windows font. This can be exploited to spoof the URL of a
trusted site via Unicode characters having a tall line-height. 

5) An error in the implementation of the "BrowserFeedWriter" object
can be exploited to execute arbitrary JavaScript code with chrome
privileges.

SOLUTION:
Update to version 3.0.14 or 3.5.3.

PROVIDED AND/OR DISCOVERED BY:
3) an anonymous researcher, reported via TippingPoint's Zero Day
Initiative
2) Dan Kaminsky

The vendor credits:
1) Steve Roussey, Daniel Holbert, Jesse Ruderman, Olli Pettay, toshi,
Josh Soref, Martijn Wargers, Carsten Book, and Taral.
2) Jesse Ruderman.
4) Juan Pablo Lopez Yacubian.
5) moz_bug_r_a4.

CHANGELOG:
2009-09-11: Added reporter links to the "Original Advisory" section.

ORIGINAL ADVISORY:
Mozilla Foundation:
http://www.mozilla.org/security/announce/2009/mfsa2009-47.html
http://www.mozilla.org/security/announce/2009/mfsa2009-48.html
http://www.mozilla.org/security/announce/2009/mfsa2009-49.html
http://www.mozilla.org/security/announce/2009/mfsa2009-50.html
http://www.mozilla.org/security/announce/2009/mfsa2009-51.html

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-065/

Dan Kaminsky:
http://archives.neohapsis.com/archives/fulldisclosure/2009-09/0142.html

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