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Insecure Library Loading
Highly critical

Firefox "contentWindow.focus()" Deleted Object Reference Vulnerability

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Release Date:  2006-04-25    Last Update:  2006-05-03    Views:  49,700

Secunia Advisory SA19802

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in Firefox, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a user's system.

The vulnerability is caused due to a reference to a deleted object when designMode is enabled. This can be exploited to corrupt the memory and cause a crash by calling the "contentWindow.focus()" method on a container with specially crafted content.

Successful exploitation may allow execution of arbitrary code.

The vulnerability has been reported in versions 1.5 through 1.5.0.2.


Solution:
Update to version 1.5.0.3.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Martijn Wargers, Nick Mott, splices, spiffomatic64, and Securident Technologies.

Original Advisory:
http://www.securident.com/vuln/ff.txt
http://www.mozilla.org/security/announce/2006/mfsa2006-30.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Firefox "contentWindow.focus()" Deleted Object Reference Vulnerability

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