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TITLE:
Comodo Firewall Pro Hooked Functions Denial of Service

SECUNIA ADVISORY ID:
SA30006

VERIFY ADVISORY:
http://secunia.com/advisories/30006/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

SOFTWARE:
Comodo Firewall Pro 2.x
http://secunia.com/product/14060/

DESCRIPTION:
Core Security Technologies has reported some vulnerabilities in
Comodo Firewall Pro, which can be exploited by malicious, local users
to cause a DoS (Denial of Service).

The vulnerabilities are caused due to input validation errors when
handling arguments passed to the hooked SSDT functions
"NtDeleteFile()", "NtCreateFile()", and "NtSetThreadContext()". These
can be exploited to cause a DoS by calling the affected functions with
specially crafted arguments.

The vulnerabilities are reported in version 2.4.18.184. Other
versions may also be affected.

SOLUTION:
Upgrade to version 3.0.
http://www.personalfirewall.comodo.com/download_firewall.html

PROVIDED AND/OR DISCOVERED BY:
Damian Saura, Anibal Sacco, Dario Menichelli, Norberto Kueffner, and
Andres Blanco y Rodrigo Carvalho of Core Security Technologies

ORIGINAL ADVISORY:
CORE-2008-0320:
http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=2249

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