CVE-2026-21018 Samsung SveService越界写入漏洞

// Conceptual PoC for Out-of-Bounds Write in SveService // Note: Actual exploitation requires specific IPC interface interaction. #include <iostream> #include <cstring> // Simulated vulnerable class structure class VulnerableService { public: // Simulates the vulnerable function handling a buffer void handleRequest(char* input, int size) { char internal_buffer[64]; // Fixed size buffer // VULNERABILITY: The loop copies data without checking if 'size' exceeds buffer size. // This leads to Out-of-Bounds Write. for (int i = 0; i < size; i++) { internal_buffer[i] = input[i]; } std::cout << "Request processed." << std::endl; } }; int main() { VulnerableService service; // Payload larger than the internal buffer (64 bytes) char malicious_payload[100]; memset(malicious_payload, 0x41, sizeof(malicious_payload)); // Fill with 'A' // Trigger the vulnerability // In a real scenario, this would be an IPC call with crafted parameters service.handleRequest(malicious_payload, 100); return 0; }