robsware

The vulnerability is Out-of-bounds Write

java
// vulnerable code
public class VulnerableCode {
    public static void main(String[] args) {
        int[] numbers = new int[10];

        for (int i = 0; i <= 10; i++) {
            numbers[i] = i * 2;
        }
    }
}

java // vulnerable code public class VulnerableCode { public static void main(String[] args) { int[] numbers = new int[10]; for (int i = 0; i <= 10; i++) { numbers[i] = i * 2; } } } The vulnerability exists because the loop iterates through the array from 0 *up to and including* 10, causing an out-of-bounds write on the 11th iteration (when `i` is 10). To fix it, simply change the loop condition from `i <= 10` to `i < 10`, so that the loop will only iterate while `i` is less than 10 (preventing the out-of-bounds access).

java
// solution how to fix the vulnerable code
public class FixedCode {
    public static void main(String[] args) {
        int[] numbers = new int[10];

        for (int i = 0; i < 10; i++) {
            numbers[i] = i * 2;
        }
    }
}