Question: How does heap-based buffer overflow differ from stack-based buffer overflow?
Answer:
Heap-based buffer overflows target dynamically allocated memory on the heap, while stack-based overflows target the program's stack.
MCQ: How does heap-based buffer overflow differ from stack-based buffer overflow?
Correct Answer:
A. Heap-based overflows target global variables.
Explanation:
Heap-based buffer overflows target dynamically allocated memory on the heap, while stack-based overflows target the program's stack.
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Related Questions
- 1. What is the purpose of shellcode in the context of buffer overflow attacks?
- 2. In a return-to-libc attack, what technique is employed by attackers to execute arbitrary code?
- 3. What is a common countermeasure against return-oriented programming (ROP) in buffer overflow attacks?
- 4. What is the significance of size validation in mitigating buffer overflow vulnerabilities?
- 5. How does stack smashing protection (SSP) enhance security against buffer overflow attacks?
- 6. In the context of buffer overflow attacks, what is a NOP sled used for?
- 7. How does input validation contribute to mitigating buffer overflow vulnerabilities?
- 8. What is the significance of understanding the calling conventions in buffer overflow attacks?
- 9. How does stack canary work in preventing buffer overflows?
- 10. What is the primary purpose of fuzzing in the context of buffer overflow attacks?
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