Question

Which of the following functions is vulnerable to buffer overflow? A. void readData(char* buffer) { // code }

B. int processInput(char* input) { // code }
C. double calculateResult(char* data) { // code }
D. String parseInput(String input) { // code }

Answer 1

The function vulnerable to buffer overflow is void readData.

Step-by-step explanation:

The function that is vulnerable to buffer overflow is function A, void readData. A buffer overflow occurs when a program tries to write data beyond the allocated memory space for a buffer, which can lead to overwriting important data and compromising the security of the system. In the given function, if the user input exceeds the size of the buffer, it can overwrite adjacent memory locations, causing a buffer overflow vulnerability.

On the other hand, functions B, C, and D are not susceptible to buffer overflow because they don't involve reading or writing data to a buffer without proper bounds checking.