If we talk about control hijacking, which of the following is true ?

1.In Buffer overflow attacks, stack based attacks

If we talk about control hijacking, which of the following is true ?

1.In Buffer overflow attacks, stack based attacks are more common than heap based attack.

2.Integer overflow attacks is not a type of control hijacking.

3.Format string vulnerabilities are used to prevent control hijacking.

4.All of the above​