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Kerio Personal Firewall URL Handling Denial of Service
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Secunia Advisory:
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SA11331
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Release Date:
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2004-04-09
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Last Update:
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2004-10-04
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Popularity:
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8,466 views
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Critical:
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Moderately 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: | Kerio Personal Firewall 4.x
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Description:
Emmanouel Kellinis has reported a vulnerability in Kerio Personal Firewall, allowing malicious people to cause a DoS (Denial of Service).
The problem is that Kerio Personal Firewall fails to handle "%12" and "%13" characters in URLs when web filtering is enabled. A single instance reportedly causes the GUI to crash; multiple instances eventually causes Kerio Personal Firewall to crash.
This has been reported in version 4.0.13. Other versions may also be affected.
Solution:
Update to version 4.1.0 or later.
Provided and/or discovered by:
Emmanouel Kellinis
Changelog:
2004-10-04: Updated "Solution" section.
Original Advisory:
http://www.cipher.org.uk/index.php?p=cipher/advisories.cipher
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About this Secunia Advisory
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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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