CVE-2024-39530

High

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis management daemon (chassisd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). If an attempt is made to access specific sensors on platforms not supporting these sensors, either via GRPC or netconf, chassisd will crash and restart leading to a restart of all FPCs and thereby a complete outage. This issue affects Junos OS: * 21.4 versions from 21.4R3 before 21.4R3-S5, * 22.1 versions from 22.1R3 before 22.1R3-S4, * 22.2 versions from 22.2R2 before 22.2R3, * 22.3 versions from 22.3R1 before 22.3R2-S2, 22.3R3, * 22.4 versions from 22.4R1 before 22.4R2. This issue does not affect Junos OS versions earlier than 21.4.

SeverityHigh
CVSS7.5
Exploit probability—
ProductJuniper Junos
PublishedJul 11, 2024
First seenJul 11, 2024
Weakness typeCWE-754CWE-754

How to fix

Affected products

ProductAffected versionsFixed in
juniper junos21.4, 21.1, 22.2, 22.3, 22.4—

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