Buffer Overflow II

Prerequisites & Requirements

• C Programming: Proficiency in pointer arithmetic, string manipulation, and manual memory management (malloc/free).
• Linux Fundamentals: Basic CLI navigation and familiarity with the GCC compilation workflow.
• Memory Corruption: A conceptual understanding of how buffer overflows occur on the stack and heap.

What will you learn?

• Defensive Buffer Handling: Implementing strict bounds checking to prevent off-by-one errors and overflows.
• Secure API Migration: Transitioning from unsafe standard library functions ( e.g ., strcpy) to safer alternatives (strncpy, memcpy).
• Dynamic Scaling: Utilizing dynamic memory allocation to safely handle variable-length string expansion.
• Null-Termination Compliance: Ensuring consistent string termination in manual buffer operations to prevent data leakage or crashes.

Tools

• Compiler: GCC (GNU Compiler Collection).
• Editor: Vim/Standard Text Editor.