PT-2024-5064 · Juniper Networks · Junos+1

Published

2024-04-10

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Updated

2024-05-16

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CVE-2024-30402

CVSS v3.1

5.9

Medium

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions: Junos OS versions prior to 20.4R3-S10 Junos OS versions 21.2 prior to 21.2R3-S7 Junos OS versions 21.4 prior to 21.4R3-S5 Junos OS versions 22.1 prior to 22.1R3-S4 Junos OS versions 22.2 prior to 22.2R3-S3 Junos OS versions 22.3 prior to 22.3R3-S1 Junos OS versions 22.4 prior to 22.4R3 Junos OS versions 23.2 prior to 23.2R1-S2, 23.2R2 Junos OS Evolved versions prior to 21.4R3-S5-EVO Junos OS Evolved versions 22.1-EVO prior to 22.1R3-S4-EVO Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S3-EVO Junos OS Evolved versions 22.3-EVO prior to 22.3R3-S1-EVO Junos OS Evolved versions 22.4-EVO prior to 22.4R3-EVO Junos OS Evolved versions 23.2-EVO prior to 23.2R2-EVO
Description: The issue is related to an Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS and Junos OS Evolved. This vulnerability allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS) when telemetry requests are sent to the device and the Dynamic Rendering Daemon (drend) is suspended, causing the l2ald to crash and restart due to factors outside the attacker's control. Repeated occurrences of these events cause a sustained DoS condition.
Recommendations: For Junos OS versions prior to 20.4R3-S10, update to version 20.4R3-S10 or later. For Junos OS versions 21.2 prior to 21.2R3-S7, update to version 21.2R3-S7 or later. For Junos OS versions 21.4 prior to 21.4R3-S5, update to version 21.4R3-S5 or later. For Junos OS versions 22.1 prior to 22.1R3-S4, update to version 22.1R3-S4 or later. For Junos OS versions 22.2 prior to 22.2R3-S3, update to version 22.2R3-S3 or later. For Junos OS versions 22.3 prior to 22.3R3-S1, update to version 22.3R3-S1 or later. For Junos OS versions 22.4 prior to 22.4R3, update to version 22.4R3 or later. For Junos OS versions 23.2 prior to 23.2R1-S2, 23.2R2, update to version 23.2R1-S2, 23.2R2 or later. For Junos OS Evolved versions prior to 21.4R3-S5-EVO, update to version 21.4R3-S5-EVO or later. For Junos OS Evolved versions 22.1-EVO prior to 22.1R3-S4-EVO, update to version 22.1R3-S4-EVO or later. For Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S3-EVO, update to version 22.2R3-S3-EVO or later. For Junos OS Evolved versions 22.3-EVO prior to 22.3R3-S1-EVO, update to version 22.3R3-S1-EVO or later. For Junos OS Evolved versions 22.4-EVO prior to 22.4R3-EVO, update to version 22.4R3-EVO or later. For Junos OS Evolved versions 23.2-EVO prior to 23.2R2-EVO, update to version 23.2R2-EVO or later.

Fix

DoS

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

BDU:2024-05591
CVE-2024-30402

Affected Products

Junos
Junos Evolved