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Home→Descriptions→SA36671

Mozilla Firefox Multiple Vulnerabilities

Secunia ID	SA36671
CVE-ID	CVE-2009-3069, CVE-2009-3070, CVE-2009-3071, CVE-2009-3072, CVE-2009-3073, CVE-2009-3074, CVE-2009-3075, CVE-2009-3076, CVE-2009-3077, CVE-2009-3078, CVE-2009-3079
Release Date	10 Sep 2009
Last Change	11 Sep 2009
Criticality	Highly Critical
Solution Status	Vendor Patch
Software	Mozilla Firefox 3.0.x Mozilla Firefox 3.5.x
Where	From remote
Impact	System access This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user. Security Bypass This covers vulnerabilities or security issues where malicious users or people can bypass certain security mechanisms of the application. The actual impact varies significantly depending on the design and purpose of the affected application. Spoofing This covers various vulnerabilities where it is possible for malicious users or people to impersonate other users or systems.
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.
Reported 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.
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