An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If an attacker sends a specific MPLS packet, which upon processing, causes an internal loop, that leads to a PFE crash and restart. Continued receipt of these packets leads to a sustained Denial of Service (DoS) condition. Circuit cross-connect (CCC) needs to be configured on the device for it to be affected by this issue. This issue only affects MX Series with MPC10, MPC11, LC9600, and MX304. This issue affects: Juniper Networks Junos OS 21.4 versions from 21.4R3 earlier than 21.4R3-S5; 22.2 versions from 22.2R2 earlier than 22.2R3-S2; 22.3 versions from 22.3R1 earlier than 22.3R2-S2; 22.3 versions from 22.3R3 earlier thanĀ 22.3R3-S1 22.4 versions from 22.4R1 earlier than 22.4R2-S2, 22.4R3; 23.2 versions earlier than 23.2R1-S1, 23.2R2.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2024-04-12T14:54:08.039Z

Updated: 2024-08-01T22:27:35.554Z

Reserved: 2023-12-27T19:38:25.704Z

Link: CVE-2024-21593

cve-icon Vulnrichment

Updated: 2024-08-01T22:27:35.554Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-04-12T15:15:23.187

Modified: 2024-05-16T20:15:08.637

Link: CVE-2024-21593

cve-icon Redhat

No data.