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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Juniper Networks | Junos OS | 21.4R3 – < 21.4R3-S5, 22.1R3 – < 22.1R3-S4, 22.2R2 – < 22.2R3, 22.3R1 – < 22.3R2-S2, 22.3R3, 22.4R1 – < 22.4R2 | 21.4R3-S5 |
Advisories 2
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
- NCSC-2024-0290 Kwetsbaarheden verholpen in Juniper Junos OS en Junos OS Evolved NCSC-NL (Netherlands) · Jul 12, 2024
References
- https://supportportal.juniper.net/JSA82989 vendor-advisory