ComputerSecurityQuestion

Consider the following C code: 1 void greet{char *arg) { 2 char buffer (16): 3 printf("I am the Senate. What is your name? *): 4 scanf("%s", buffer): 5 printf("It's treason then, %s " buffer): 6 } 7 8 int main(int argc char *argv[]) { 9 char beg [6] = 'Kenobi': 10 char end [9] = 'maybe not?': 11 strncat(beg, end, 5): 12 greet(argv[1]): 13 return 0: 14 } What is the line number that has a memory vulnerability and what is this vulnerability called? Just before the program executes line 4, the registers are: %esp: 0xBFFFFB20 %ebp: 0xBFFFFB48 Given this information, describe in detail how an attacker would take advantage of the vulnerability. Also make sure to include the address that the attacker needs to over-write. (Maximum 5 sentences) What would you change to fix the problem in part 1? Given the code as is, would stack canaries prevent exploitation of this vulnerability? Why or why not