PT-2024-7135 · Juniper Networks · Junos

Published

2024-09-25

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Updated

2026-01-26

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CVE-2024-47494

CVSS v4.0

8.2

High

VectorAV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:Y/R:A/V:X/RE:L/U:Green
Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 21.4R3-S9 Junos OS versions 22.2 prior to 22.2R3-S5 Junos OS versions 22.3 prior to 22.3R3-S4 Junos OS versions 22.4 prior to 22.4R3-S3 Junos OS versions 23.2 prior to 23.2R2-S2 Junos OS versions 23.4 prior to 23.4R2
Description A Time-of-check Time-of-use (TOCTOU) Race Condition issue in the AgentD process of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by crashing the FPC, which will recover automatically without user intervention after the crash. The issue is related to synchronization errors when using a shared resource, allowing a remote attacker to exploit the vulnerability and cause a service disruption.
Recommendations For Junos OS versions prior to 21.4R3-S9, update to version 21.4R3-S9 or later. For Junos OS versions 22.2 prior to 22.2R3-S5, update to version 22.2R3-S5 or later. For Junos OS versions 22.3 prior to 22.3R3-S4, update to version 22.3R3-S4 or later. For Junos OS versions 22.4 prior to 22.4R3-S3, update to version 22.4R3-S3 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 23.4 prior to 23.4R2, update to version 23.4R2 or later.

Fix

DoS

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

BDU:2024-08465
CVE-2024-47494

Affected Products

Junos