CVE-2024-39530

published 2024-07-11

CVE-2024-39530: An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis management daemon (chassisd) of Juniper Networks Junos OS allows an…

high 8.7 CVSS 4.0

AV N 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

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.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper_networks	junos_os	>= 21.4R3 < 21.4R3-S5	21.4R3-S5
juniper_networks	junos_os	>= 22.1R3 < 22.1R3-S4	22.1R3-S4
juniper_networks	junos_os	>= 22.2R2 < 22.2R3	22.2R3
juniper_networks	junos_os	>= 22.3R1 < 22.3R2-S2, 22.3R3	22.3R2-S2, 22.3R3
juniper_networks	junos_os	>= 22.4R1 < 22.4R2	22.4R2

CWE-754