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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox Race Condition in Accessing an NPObject May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1022386
SecurityTracker URL:  http://securitytracker.com/id/1022386
CVE Reference:   CVE-2009-1837   (Links to External Site)
Date:  Jun 12 2009
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.x prior to 3.0.11
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will navigate away from a web page while a Java applet is loading to cause the applet to be deleted and then later called, potentially writing freed memory and executing arbitrary code on the target system. The code will run with the privileges of the target user.

The vulnerability resides in NPObjWrapper_NewResolve and occurs when accessing the properties of an NPObject.

Firefox 2.x is not affected.

Jakob Balle and Carsten Eiram of Secunia Research reported this vulnerability.

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (3.0.11).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2009/mfsa2009-28.html

Vendor URL:  www.mozilla.org/security/announce/2009/mfsa2009-28.html (Links to External Site)
Cause:   Access control error, State error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jun 12 2009 (Red Hat Issues Fix) Mozilla Firefox Race Condition in Accessing an NPObject May Let Remote Users Execute Arbitrary Code   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 4 and 5.



 Source Message Contents

Date:  Thu, 11 Jun 2009 20:10:34 -0400
Subject:  http://www.mozilla.org/security/announce/2009/mfsa2009-28.html


CVE-2009-1837
 
 


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