This is a tool you can use to check if a simple binary is vulnerable to basic buffer overflow.
Usage:
overflow_checker.py [-h] [-m MAX] program
Options
positional arguments:
program program to perform the check on
optional arguments:
-h, --help show this help message and exit
-m MAX, --max MAX maximum number of bytes to test (default: 99999)
You can find some binaries as demo in the test_files directory