PT-2024-1133 · Juniper Networks · Junos+1

Published

2024-01-10

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Updated

2024-01-26

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CVE-2024-21596

CVSS v3.1

5.3

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 20.4R3-S9 Juniper Networks Junos OS versions 21.2 prior to 21.2R3-S7 Juniper Networks Junos OS versions 21.3 prior to 21.3R3-S5 Juniper Networks Junos OS versions 21.4 prior to 21.4R3-S5 Juniper Networks Junos OS versions 22.1 prior to 22.1R3-S4 Juniper Networks Junos OS versions 22.2 prior to 22.2R3-S2 Juniper Networks Junos OS versions 22.3 prior to 22.3R3-S1 Juniper Networks Junos OS versions 22.4 prior to 22.4R2-S2, 22.4R3 Juniper Networks Junos OS versions 23.1 prior to 23.1R2 Juniper Networks Junos OS versions 23.2 prior to 23.2R1-S2, 23.2R2 Juniper Networks Junos OS Evolved versions prior to 21.3R3-S5-EVO Juniper Networks Junos OS Evolved versions 21.4-EVO prior to 21.4R3-S5-EVO Juniper Networks Junos OS Evolved versions 22.1-EVO prior to 22.1R3-S4-EVO Juniper Networks Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S2-EVO Juniper Networks Junos OS Evolved versions 22.3-EVO later than 22.3R1-EVO Juniper Networks Junos OS Evolved versions 22.4-EVO prior to 22.4R2-S2-EVO, 22.4R3-EVO Juniper Networks Junos OS Evolved versions 23.1-EVO prior to 23.1R2-EVO Juniper Networks Junos OS Evolved versions 23.2-EVO prior to 23.2R1-S2-EVO, 23.2R2-EVO
Description A Heap-based Buffer Overflow issue in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If an attacker sends a specific BGP UPDATE message to the device, this will cause a memory overwrite and therefore an RPD crash and restart in the backup Routing Engine (RE). Continued receipt of these packets will cause a sustained Denial of Service (DoS) condition in the backup RE. The primary RE is not impacted by this issue and there is no impact on traffic. This issue only affects devices with NSR enabled and requires an attacker to have an established BGP session to a system affected by the issue, affecting both eBGP and iBGP implementations.
Recommendations For Juniper Networks Junos OS versions prior to 20.4R3-S9, update to version 20.4R3-S9 or later. For Juniper Networks Junos OS versions 21.2 prior to 21.2R3-S7, update to version 21.2R3-S7 or later. For Juniper Networks Junos OS versions 21.3 prior to 21.3R3-S5, update to version 21.3R3-S5 or later. For Juniper Networks Junos OS versions 21.4 prior to 21.4R3-S5, update to version 21.4R3-S5 or later. For Juniper Networks Junos OS versions 22.1 prior to 22.1R3-S4, update to version 22.1R3-S4 or later. For Juniper Networks Junos OS versions 22.2 prior to 22.2R3-S2, update to version 22.2R3-S2 or later. For Juniper Networks Junos OS versions 22.3 prior to 22.3R3-S1, update to version 22.3R3-S1 or later. For Juniper Networks Junos OS versions 22.4 prior to 22.4R2-S2, 22.4R3, update to version 22.4R2-S2, 22.4R3 or later. For Juniper Networks Junos OS versions 23.1 prior to 23.1R2, update to version 23.1R2 or later. For Juniper Networks Junos OS versions 23.2 prior to 23.2R1-S2, 23.2R2, update to version 23.2R1-S2, 23.2R2 or later. For Juniper Networks Junos OS Evolved versions prior to 21.3R3-S5-EVO, update to version 21.3R3-S5-EVO or later. For Juniper Networks Junos OS Evolved versions 21.4-EVO prior to 21.4R3-S5-EVO, update to version 21.4R3-S5-EVO or later. For Juniper Networks Junos OS Evolved versions 22.1-EVO prior to 22.1R3-S4-EVO, update to version 22.1R3-S4-EVO or later. For Juniper Networks Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S2-EVO, update to version 22.2R3-S2-EVO or later. For Juniper Networks Junos OS Evolved versions 22.3-EVO later than 22.3R1-EVO, update to a version earlier than 22.3R1-EVO or later than the specified vulnerable versions. For Juniper Networks Junos OS Evolved versions 22.4-EVO prior to 22.4R2-S2-EVO, 22.4R3-EVO, update to version 22.4R2-S2-EVO, 22.4R3-EVO or later. For Juniper Networks Junos OS Evolved versions 23.1-EVO prior to 23.1R2-EVO, update to version 23.1R2-EVO or later. For Juniper Networks Junos OS Evolved versions 23.2-EVO prior to 23.2R1-S2-EVO, 23.2R2-EVO, update to version 23.2R1-S2-EVO, 23.2R2-EVO or later.

Fix

DoS

Memory Corruption

Heap Based Buffer Overflow

Buffer Overflow

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Weakness Enumeration

CWE-787CWE-122CWE-119

Related Identifiers

BDU:2024-00446
CVE-2024-21596

Affected Products

Junos
Junos Evolved