CVE-2026-33780 Junos OS l2ald内存泄漏漏洞

#!/usr/bin/env python3 # PoC simulation for CVE-2026-33780 # This script simulates the monitoring of the memory leak # Triggering the actual leak requires a specific EVPN-MPLS environment. import time def check_memory_leak(): """ Simulate checking the memory usage as suggested in the advisory. Command: show system process extensive | match "PID|l2ald" """ print("[*] Monitoring l2ald process memory...") # In a real exploit, we would observe increasing memory usage here for i in range(5): print(f"[*] Check cycle {i+1}: Memory usage increasing...") time.sleep(1) print("[!] Potential DoS condition detected if memory does not free up.") def simulate_route_churn(): """ Simulate the trigger: Route churn in EVPN-MPLS. An adjacent attacker would send route updates to cause memory allocation without release. """ print("[*] Simulating EVPN route churn...") # Logic to send BGP updates would go here print("[+] Trigger sent. l2ald should allocate memory and fail to release it.") if __name__ == "__main__": simulate_route_churn() check_memory_leak()