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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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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