Vulnerability Monitor

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CVE-2024-39547

An Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS). 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. While not explicitly required, the impact is more severe when RIB sharding is enabled. Task accounting shows unexpected reads by the RPD Server jobs for shards: user@junos> show task accounting detail ... read:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\ This issue affects: Junos OS with cRPD:  * All versions before 21.2R3-S8,  * 21.4 before 21.4R3-S7,  * 22.1 before 22.1R3-S6,  * 22.2 before 22.2R3-S4,  * 22.3 before 22.3R3-S3,  * 22.4 before 22.4R3-S2,  * 23.2 before 23.2R2-S2,  * 24.2 before 24.2R2;  Junos OS Evolved with cRPD:  * All versions before 21.4R3-S7-EVO,  * 22.2 before 22.2R3-S4-EVO,  * 22.3 before 22.3R3-S3-EVO,  * 22.4 before 22.4R3-S2-EVO,  * 23.2 before 23.2R2-EVO.

Published

2024-10-11T16:15:07.483

Last Modified

2026-01-26T18:19:43.567

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-755
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application juniper junos_containerized_routing_protocol_daemon - Yes
Operating System juniper junos < 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos_os_evolved < 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No
References