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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Subject: Ventrilo Server Denial of Service Vulnerability
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