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Firefox "contentWindow.focus()" Deleted Object Reference Vulnerability
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Secunia Advisory:
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SA19802
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Release Date:
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2006-04-25
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Last Update:
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2006-05-03
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Critical:
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Highly critical
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Impact:
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DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Mozilla Firefox 1.x
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| | CVE reference: | CVE-2006-1993 (Secunia mirror)
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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.
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to version 1.5.0.3.
http://www.mozilla.com/firefox/
Provided and/or discovered by:
Martijn Wargers, Nick Mott, splices, spiffomatic64, and Securident Technologies.
Changelog:
2006-04-26: Added CVE reference and link to Bugzilla entry, and updated "Description" section.
2006-05-03: Added link to US-CERT vulnerability note. The vendor discloses additional details. Updated advisory.
Original Advisory:
http://www.securident.com/vuln/ff.txt
http://www.mozilla.org/security/announce/2006/mfsa2006-30.html
Other References:
https://bugzilla.mozilla.org/show_bug.cgi?id=334515
US-CERT VU#866300:
http://www.kb.cert.org/vuls/id/866300
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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