PT-2024-7779 · Juniper Networks · Junos+1

Published

2024-06-25

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Updated

2026-01-26

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CVE-2024-39547

CVSS v2.0

7.8

High

VectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 21.2R3-S8 Junos OS versions 21.4 prior to 21.4R3-S7 Junos OS versions 22.1 prior to 22.1R3-S6 Junos OS versions 22.2 prior to 22.2R3-S4 Junos OS versions 22.3 prior to 22.3R3-S3 Junos OS versions 22.4 prior to 22.4R3-S2 Junos OS versions 23.2 prior to 23.2R2-S2 Junos OS versions 24.2 prior to 24.2R2 Junos OS Evolved versions prior to 21.4R3-S7-EVO Junos OS Evolved versions 22.2 prior to 22.2R3-S4-EVO Junos OS Evolved versions 22.3 prior to 22.3R3-S3-EVO Junos OS Evolved versions 22.4 prior to 22.4R3-S2-EVO Junos OS Evolved versions 23.2 prior to 23.2R2-EVO
Description The issue is related to an Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD. This vulnerability allows an unauthenticated network-based attacker to cause a CPU-based Denial of Service (DoS) by sending crafted TCP traffic to the routing engine (RE). If specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process. The impact is more severe when RIB sharding is enabled.
Recommendations For Junos OS versions prior to 21.2R3-S8, update to version 21.2R3-S8 or later. For Junos OS versions 21.4 prior to 21.4R3-S7, update to version 21.4R3-S7 or later. For Junos OS versions 22.1 prior to 22.1R3-S6, update to version 22.1R3-S6 or later. For Junos OS versions 22.2 prior to 22.2R3-S4, update to version 22.2R3-S4 or later. For Junos OS versions 22.3 prior to 22.3R3-S3, update to version 22.3R3-S3 or later. For Junos OS versions 22.4 prior to 22.4R3-S2, update to version 22.4R3-S2 or later. For Junos OS versions 23.2 prior to 23.2R2-S2, update to version 23.2R2-S2 or later. For Junos OS versions 24.2 prior to 24.2R2, update to version 24.2R2 or later. For Junos OS Evolved versions prior to 21.4R3-S7-EVO, update to version 21.4R3-S7-EVO or later. For Junos OS Evolved versions 22.2 prior to 22.2R3-S4-EVO, update to version 22.2R3-S4-EVO or later. For Junos OS Evolved versions 22.3 prior to 22.3R3-S3-EVO, update to version 22.3R3-S3-EVO or later. For Junos OS Evolved versions 22.4 prior to 22.4R3-S2-EVO, update to version 22.4R3-S2-EVO or later. For Junos OS Evolved versions 23.2 prior to 23.2R2-EVO, update to version 23.2R2-EVO or later.

Fix

DoS

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

Related Identifiers

BDU:2024-09274
CVE-2024-39547

Affected Products

Junos
Junos Evolved