CVE-2024-21593

CVSS 3.1 Score 6.5 of 10 (medium)

Details

Published Apr 12, 2024
Updated: Apr 15, 2024
CWE ID 703

Summary

CVE-2024-21593 is an Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved. It allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). The vulnerability occurs when a specific MPLS packet is sent, causing an internal loop that leads to a PFE crash and restart. Continued receipt of these packets can result in a sustained DoS condition. This issue only affects MX Series with MPC10, MPC11, LC9600, and MX304. To remediate the vulnerability, users need to configure circuit cross-connect (CCC) on the affected devices. The potential danger posed by this vulnerability is a disruption in network availability due to the DoS attack.

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