CVE-2023-36841 (junos)

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows a unauthenticated network-based attacker to cause an infinite loop, resulting in a Denial of Service (DoS).

An attacker who sends malformed TCP traffic via an interface configured with PPPoE, causes an infinite loop on the respective PFE. This results in consuming all resources and a manual restart is needed to recover.

This issue affects interfaces with …

attacker check conditions cve denial of service dos engine forwarding interface juniper juniper networks junos junos os loop malformed network networks packet series service tcp traffic unauthenticated vulnerability