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Mozilla Firefox History Information Denial of Service Weakness
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Secunia Advisory:
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SA17934
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Release Date:
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2005-12-08
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Last Update:
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2006-04-14
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Popularity:
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34,104 views
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Critical:
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Not critical
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Impact:
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DoS
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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-2005-4134
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Description:
ZIPLOCK has discovered a weakness in Mozilla Firefox, which can be exploited by malicious people to cause a DoS (Denial of Service).
The weakness is caused due to an error in the handling of large history information. This can be exploited to fill the history file "history.dat" with large history information by tricking a user into visiting a malicious web site with an overly large title (e.g. set via JavaScript).
Successful exploitation causes the browser to consume a large amount of CPU and memory resources on a vulnerable system when the affected browser is started up again after an attack. Users may have to remove the "history.dat" file in order to be able to use the affected browser.
The weakness has been confirmed in version 1.5. Other versions may also be affected.
Solution:
Update to versions 1.0.8 or 1.5.0.1.
http://www.mozilla.com/firefox/
Provided and/or discovered by:
ZIPLOCK
Changelog:
2005-12-09: Added link to vendor advisory and updated "Solution" section.
2005-12-14: Added CVE reference.
2006-02-02: Updated "Solution" section and added links to vendor advisories.
2006-04-14: Updated "Solution" section.
Original Advisory:
Mozilla:
http://www.mozilla.org/security/history-title.html
http://www.mozilla.org/security/announce/mfsa2006-03.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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