Integer Underflow

Critical Buffer Overflow in Cache.c: How Unsigned Integer Underflow Opens the Door to Remote Code Execution

A critical memory safety vulnerability was discovered and patched in `src/cache.c`, where an unchecked `memcpy` operation could be exploited via attacker-controlled network responses to cause out-of-bounds memory reads and writes. The root cause — a silent unsigned integer underflow — is a classic but devastatingly dangerous pattern that can lead to remote code execution, data corruption, or application crashes. Understanding this vulnerability is essential for any developer working with low-lev