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TITLE:
Ventrilo Server Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA16551

VERIFY ADVISORY:
http://secunia.com/advisories/16551/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Ventrilo Server 2.x
http://secunia.com/product/5609/

DESCRIPTION:
Luigi Auriemma has discovered a vulnerability in Ventrilo Server,
which can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error in handling certain
malformed status query packets. This can be exploited to crash the
server by sending a specially crafted status query packet to port
3784/udp.

The vulnerability has been confirmed in version 2.3.0 and has also
been reported in versions 2.1.2 through 2.3.0.

SOLUTION:
Filter incoming malicious UDP datagrams to the service.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/ventboom-adv.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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