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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox Buffer Overflow in Netscape Extension GIF Processing Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1013517
SecurityTracker URL:  http://securitytracker.com/id/1013517
CVE Reference:   CVE-2005-0399   (Links to External Site)
Date:  Mar 23 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.0.2
Description:   A vulnerability was reported in Mozilla Firefox in the processing of GIF images. A remote user can execute arbitrary code on the target system.

There is a GIF processing error in the parsing of the obsolete Netscape extension 2. A remote user can create a specially crafted image that, when viewed by the target user, will trigger a buffer overflow and execute arbitrary code.

Mark Dowd of ISS X-Force discovered this vulnerability.

Impact:   A remote user can create an image that, when viewed by the target user, will execute arbitrary code on the target user's system. The code will run with the privileges of the target user.
Solution:   The vendor has issued a fixed version (1.0.2), available at:

http://www.mozilla.org/products/firefox/

Vendor URL:  www.mozilla.org/security/announce/mfsa2005-30.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.
Mar 23 2005 (Red Hat Issues Fix) Mozilla Firefox Buffer Overflow in Netscape Extension GIF Processing Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix.
Mar 24 2005 (Fedora Issues Fix) Mozilla Firefox Buffer Overflow in Netscape Extension GIF Processing Lets Remote Users Execute Arbitrary Code
Fedora has released a fix.
Mar 24 2005 (Red Hat Issues Fix) Mozilla Firefox Buffer Overflow in Netscape Extension GIF Processing Lets Remote Users Execute Arbitrary Code
Red Hat has released a fix.



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