PT-2024-5063 · Juniper Networks · Junos+1

Published

2024-04-10

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Updated

2025-02-07

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CVE-2024-30380

CVSS v4.0

7.1

High

VectorAV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions: Junos OS versions prior to 20.4R3-S9 Junos OS versions from 21.2 prior to 21.2R3-S7 Junos OS versions from 21.3 prior to 21.3R3-S5 Junos OS versions from 21.4 prior to 21.4R3-S4 Junos OS versions from 22.1 prior to 22.1R3-S4 Junos OS versions from 22.2 prior to 22.2R3-S2 Junos OS versions from 22.3 prior to 22.3R2-S2, 22.3R3-S1 Junos OS versions from 22.4 prior to 22.4R2-S2, 22.4R3 Junos OS versions from 23.2 prior to 23.2R1-S1, 23.2R2 Junos OS Evolved versions prior to 21.2R3-S7 Junos OS Evolved versions from 21.3 prior to 21.3R3-S5-EVO Junos OS Evolved versions from 21.4 prior to 21.4R3-S5-EVO Junos OS Evolved versions from 22.1 prior to 22.1R3-S4-EVO Junos OS Evolved versions from 22.2 prior to 22.2R3-S2-EVO Junos OS Evolved versions from 22.3 prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO Junos OS Evolved versions from 22.4 prior to 22.4R2-S2-EVO, 22.4R3-EVO Junos OS Evolved versions from 23.2 prior to 23.2R1-S1-EVO, 23.2R2-EVO
Description: The issue is related to an Improper Handling of Exceptional Conditions vulnerability in the l2cpd process, which is responsible for layer 2 control protocols such as STP, RSTP, MSTP, VSTP, ERP, and LLDP. An adjacent unauthenticated attacker can cause a Denial of Service (DoS) by sending a specific TLV, leading to the crash of the l2cpd process and reinitialization of STP protocols, MVRP, and ERP. Continued receipt and processing of this specific TLV will create a sustained Denial of Service (DoS) condition.
Recommendations: For Junos OS versions prior to 20.4R3-S9, update to version 20.4R3-S9 or later. For Junos OS versions from 21.2 prior to 21.2R3-S7, update to version 21.2R3-S7 or later. For Junos OS versions from 21.3 prior to 21.3R3-S5, update to version 21.3R3-S5 or later. For Junos OS versions from 21.4 prior to 21.4R3-S4, update to version 21.4R3-S4 or later. For Junos OS versions from 22.1 prior to 22.1R3-S4, update to version 22.1R3-S4 or later. For Junos OS versions from 22.2 prior to 22.2R3-S2, update to version 22.2R3-S2 or later. For Junos OS versions from 22.3 prior to 22.3R2-S2, 22.3R3-S1, update to version 22.3R2-S2, 22.3R3-S1 or later. For Junos OS versions from 22.4 prior to 22.4R2-S2, 22.4R3, update to version 22.4R2-S2, 22.4R3 or later. For Junos OS versions from 23.2 prior to 23.2R1-S1, 23.2R2, update to version 23.2R1-S1, 23.2R2 or later. For Junos OS Evolved versions prior to 21.2R3-S7, update to version 21.2R3-S7 or later. For Junos OS Evolved versions from 21.3 prior to 21.3R3-S5-EVO, update to version 21.3R3-S5-EVO or later. For Junos OS Evolved versions from 21.4 prior to 21.4R3-S5-EVO, update to version 21.4R3-S5-EVO or later. For Junos OS Evolved versions from 22.1 prior to 22.1R3-S4-EVO, update to version 22.1R3-S4-EVO or later. For Junos OS Evolved versions from 22.2 prior to 22.2R3-S2-EVO, update to version 22.2R3-S2-EVO or later. For Junos OS Evolved versions from 22.3 prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO, update to version 22.3R2-S2-EVO, 22.3R3-S1-EVO or later. For Junos OS Evolved versions from 22.4 prior to 22.4R2-S2-EVO, 22.4R3-EVO, update to version 22.4R2-S2-EVO, 22.4R3-EVO or later. For Junos OS Evolved versions from 23.2 prior to 23.2R1-S1-EVO, 23.2R2-EVO, update to version 23.2R1-S1-EVO, 23.2R2-EVO or later.

Fix

DoS

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

Related Identifiers

BDU:2024-05590
CVE-2024-30380

Affected Products

Junos
Junos Evolved