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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox Memory Re-use Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1023817
SecurityTracker URL:  http://securitytracker.com/id/1023817
CVE Reference:   CVE-2010-1121   (Links to External Site)
Date:  Apr 2 2010
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.6 - 3.6.2
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 a memory corruption error and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Nils of MWR InfoSecurity reported this vulnerability during during the TippingPoint Zero Day Initiative 2010 Pwn2Own contest.

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 (3.6.3).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2010/mfsa2010-25.html

Vendor URL:  www.mozilla.org/security/announce/2010/mfsa2010-25.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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