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TITLE:
BlackICE PC Protection "NtOpenSection()" Denial of Service

SECUNIA ADVISORY ID:
SA21710

VERIFY ADVISORY:
http://secunia.com/advisories/21710/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

SOFTWARE:
BlackICE PC Protection 3.x
http://secunia.com/product/1702/

DESCRIPTION:
David Matousek has discovered a vulnerability in BlackICE PC
Protection, which can be exploited by malicious, local users to cause
a DoS (Denial of Service).

The vulnerability is cause due to an error in RapDrv.sys in the
handling of the object attribute parameter in the "NtOpenSection()"
API hook. This can be exploited to crash a vulnerable system via the
"NtOpenSection()" API where the third parameter is set to NULL.

The vulnerability has been confirmed in version 3.6.cpn and has also
been reported in versions 3.6.cpj and 3.6.cpiE. Other versions may
also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
David Matousek

ORIGINAL ADVISORY:
http://www.matousec.com/info/advisories/BlackICE-Insufficient-validation-of-arguments-of-NtOpenSection.php

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