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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox Bug in Just-in-time (JIT) JavaScript Compiler Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1022549
SecurityTracker URL:  http://securitytracker.com/id/1022549
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Updated:  Jul 17 2009
Original Entry Date:  Jul 14 2009
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 3.5 only
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 trigger an error in the Just-in-time (JIT) compiler and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The original advisory is available at:

http://milw0rm.com/exploits/9137

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 (3.5.1).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2009/mfsa2009-41.html

The vendor's original advisory is available at:

http://blog.mozilla.com/security/2009/07/14/critical-javascript-vulnerability-in-firefox-35/

Vendor URL:  www.mozilla.org/security/announce/2009/mfsa2009-41.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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