Consider the following code snippet in C: char *base_url = malloc(11 * sizeof(char)); printf("Enter an 11 character URL: "); scanf("%s", base_url); char src[11]; char dst[11]; // copies base_url to src strncpy(src, base_url, 11); // copies src to dest strcpy(dst, src); printf("src: %s dst: %s\n", src, dst); Identify at least one potential buffer overflow vulnerability and explain why/how it can be exploited (i.e., not just that it’s a buffer overflow, but where the problem will manifest itself).

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Q: 2. What is null pointer?

A:

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Q: What is null pointer?

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Concept of Pointer Parameter

Pointers are the special variable that stores the variable address, instead of storing the variable value. Pointer is a powerful feature of a programming language. A pointer is mostly used to save memory space and improve execution time.