Buffer Overflows

Most languages used to write web-code - like Python, Ruby, Node, Java and .NET - used "managed memory", and are immune to buffer overflow attacks.

Memory-Safe Java Code
try {
  String[] array = { "a", "b", "c" };
  array[25] = "z";
}
catch (ArrayIndexOutOfBoundsException e) {
  // Attempts to overflow the buffer will raise an error in Java.
  e.printStackTrace();
}