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TITLE:
ZoneAlarm Pro vsdatant Driver Denial of Service

SECUNIA ADVISORY ID:
SA25064

VERIFY ADVISORY:
http://secunia.com/advisories/25064/

CRITICAL:
Not critical

IMPACT:
DoS

WHERE:
Local system

SOFTWARE:
ZoneAlarm Pro 6.x
http://secunia.com/product/6071/
ZoneAlarm Pro 5.x
http://secunia.com/product/4280/
ZoneAlarm Pro 4.x
http://secunia.com/product/1961/
ZoneAlarm Pro 3.x
http://secunia.com/product/1960/
ZoneAlarm Pro 2.x
http://secunia.com/product/152/

DESCRIPTION:
Matousec has discovered a vulnerability in ZoneAlarm Pro, which can
be exploited by malicious, local users to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error in the handling of data
sent to the "Device\vsdatant" device. This can be exploited to crash
a vulnerable system by sending malformed data to the said device.

The vulnerability is confirmed in version 6.5.737.000 and also
reported in version 6.1.744.001. Other versions may also be affected.

SOLUTION:
Upgrade to version 7.0.302.000 or later.
http://www.zonealarm.com/store/content/catalog/download_buy.jsp?dc=12bms&ctry=US&lang=en

Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
Matousec Transparent Security

ORIGINAL ADVISORY:
http://www.matousec.com/info/advisories/ZoneAlarm-Insufficient-validation-of-vsdatant-driver-input-buffer.php

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