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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
Mozilla Firefox Canvas Element Bug Lets Remote Users Obtain Images
SecurityTracker Alert ID:  1021187
SecurityTracker URL:  http://securitytracker.com/id/1021187
CVE Reference:   CVE-2008-5012   (Links to External Site)
Date:  Nov 13 2008
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.0.0.18
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can access image content from the target user's browser. A remote user can determine software installed on the target user's system.

A remote user can create HTML with a specially crafted canvas element that, in conjunction with an HTTP redirect, can access arbitrary images from other domains. Using moz-icon as the redirection target, a remote user can determine software installed on the target user's system.

Thunderbird and SeaMonkey are affected.

Firefox version 3 is not affected.

Georgi Guninski, Michal Zalewski, and Chris Evans reported this vulnerability.

Impact:   A remote user can access image content from arbitrary domains on the target user's browser.

A remote user can determine software installed on the target user's system.

Solution:   The vendor has issued a fix (2.0.0.18).

The vendor's advisory is available at:

http://www.mozilla.org/security/announce/2008/mfsa2008-48.html

Vendor URL:  www.mozilla.org/security/announce/2008/mfsa2008-48.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 13 2008 (Mozilla Issues Fix for SeaMonkey) Mozilla Firefox Canvas Element Bug Lets Remote Users Obtain Images
Mozilla has issued a fix for Mozilla SeaMonkey.
Nov 13 2008 (Red Hat Issues Fix for SeaMonkey) Mozilla Firefox Canvas Element Bug Lets Remote Users Obtain Images
Red Hat has released a fix for SeaMonkey for Red Hat Enterprise Linux 2.1, 3, and 4.
Nov 20 2008 (Mozilla Issues Fix for Thunderbird) Mozilla Firefox Canvas Element Bug Lets Remote Users Obtain Images
Mozilla has issued a fix for Thunderbird.
Nov 20 2008 (Red Hat Issues Fix for Thunderbird) Mozilla Firefox Canvas Element Bug Lets Remote Users Obtain Images
Red Hat has released a fix for Thunderbird for Red Hat Enterprise Linux 4 and 5.



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