문제 소스는 아래와 같다. /* The Lord of the BOF : The Fellowship of the BOF – golem – stack destroyer */ #include <stdio.h> #include <stdlib.h> extern char **environ; main(int argc, char *argv[]) { char buffer[40]; int i; if(argc < 2){ printf(argv error\n); exit(0); } if(argv[1][47] != '\xbf') { printf(stack is still your friend.\n); exit(0); …