CVE-2024-21616

<br /> An Improper Validation of Syntactic Correctness of Input vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).<br /> <br /> On all Junos OS MX Series and SRX Series platforms, when SIP ALG is enabled, and a specific SIP packet is received and processed, NAT IP allocation fails for genuine traffic, which causes Denial of Service (DoS). Continuous receipt of this specific SIP ALG packet will cause a sustained DoS condition.<br /> <br /> NAT IP usage can be monitored by running the following command.<br /> <br /> user@srx&gt; show security nat resource-usage source-pool <br /> <br /> <br /> Pool name: source_pool_name<br /> ..<br /> Address Factor-index Port-range Used Avail Total Usage<br /> X.X.X.X<br /> 0 Single Ports 50258 52342 62464 96%