Fuji Electric V-Server before 6.0.33.0 is vulnerable to denial of service via a crafted UDP message sent to port 8005. An unauthenticated, remote attacker can crash vserver.exe due to an integer overflow in the UDP message handling logic.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://www.tenable.com/security/research/tra-2019-27 | third party advisory exploit |
| http://www.securityfocus.com/bid/108740 | third party advisory vdb entry |