Luigi Auriemma has reported two vulnerabilities in Vavoom, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error within the handling of asynchronous socket connections can cause an infinite loop when processing a packet with no data or with a size larger than 4096 bytes. This can be exploited to cause users to be unable to connect to the server until it is restarted
2) A boundary error exists within the handling of compressed packets. This can be exploited to cause a buffer overflow and crashes the server via a specially-crafted "comprLength" value in the packet.
The vulnerabilities have been reported in version 1.19.1 and prior.
Solution: Host network games only within trusted networks.
Provided and/or discovered by: Luigi Auriemma
Original Advisory: http://aluigi.altervista.org/adv/vaboom-adv.txt
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Subject: Vavoom Two Denial of Service Vulnerabilities
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