Description
An Improper Handling of Length Parameter Inconsistency vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When a device configured for Secure Vector Routing (SVR) receives a specifically malformed packet the PFE will crash and restart.
This issue affects Junos OS on SRX Series:
* All 21.4 versions,
* 22.2 versions before 22.2R3-S6,
* 22.4 versions before 22.4R3-S6,
* 23.2 versions before 23.2R2-S3,
* 23.4 versions before 23.4R2-S4,
* 24.2 versions before 24.2R2.
This issue does not affect versions before 21.4.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Juniper Networks | Junos OS | 21.4R1 – < 21.4*, 22.2 – < 22.2R3-S6, 22.4 – < 22.4R3-S6, 23.2 – < 23.2R2-S3, 23.4 – < 23.4R2-S4, 24.2 – < 24.2R2 | 21.4* |
Advisories 1
- WID-SEC-2025-0777 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 9, 2025
References
- https://supportportal.juniper.net/JSA96470 vendor-advisory