Juniper Networks Junos OS SRX4700 Packet Forwarding Engine Denial-of-Service Vulnerability

A use of uninitialized resource vulnerability has been identified in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX4700 devices. This vulnerability allows an unauthenticated, network-based attacker to cause a denial-of-service (DoS) condition. When forwarding-options sampling is enabled, any traffic sent to the Routing Engine (RE) by the PFE line card can trigger a crash and restart of the affected Forwarding Plane Component (FPC), creating a sustained DoS condition. This issue affects both IPv4 and IPv6 traffic.

Impact

Exploitation of this vulnerability leads to a crash and restart of the affected PFE line card, causing a denial-of-service condition.