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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020336
SecurityTracker URL:  http://securitytracker.com/id/1020336
CVE Reference:   CVE-2008-2785   (Links to External Site)
Updated:  Jul 16 2008
Original Entry Date:  Jun 20 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.x, 3.0
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 a large number of references to a common CSS object to overflow the CSSValue array data structure. The browser will attempt to free the object while it is still in use, which may allow arbitrary code to be executed. The code will run with the privileges of the target user.

TippingPoint reported this vulnerability.

Impact:   A remote user can cause arbitrary code to be executed on the target user's system.
Solution:   The vendor has issued a fix (2.0.0.16, 3.0.1).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2008/mfsa2008-34.html

The vendor's original advisory is available at:

http://blog.mozilla.com/security/2008/06/18/new-security-issue-under-investigation/

Vendor URL:  www.mozilla.org/security/announce/2008/mfsa2008-34.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 16 2008 (Red Hat Issues Fix) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 5.
Jul 16 2008 (Red Hat Issues Fix) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 4.
Jul 16 2008 (Red Hat Issues Fix for Seamonkey) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for Seamonkey on Red Hat Enterprise Linux 2.1, 3, and 4.
Jul 24 2008 (Red Hat Issues Fix for Thunderbird) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix for Red Hat Enterprise Linux 4 and 5.
Jul 25 2008 (Mozilla Issues Fix for Thunderbird) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
Mozilla has issued a fix for Thunderbird.



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