---
cve: "CVE-2024-21598"
severity: "HIGH"
cvss: 8.7
epss: "57%"
vendor: "Juniper Networks"
kev: false
exploited: false
published: "2024-04-12 15:15:23"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T10:11:50+02:00"
---

# CVE-2024-21598

> 8.7 HIGH

## Beschreibung

An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.

This issue affects Juniper Networks
Junos OS:
  *  20.4 versions 20.4R1 and later versions earlier than 20.4R3-S9;
  *  21.2 versions earlier than 21.2R3-S7;
  *  21.3 versions earlier than 21.3R3-S5;
  *  21.4 versions earlier than 21.4R3-S5;
  *  22.1 versions earlier than 22.1R3-S4;
  *  22.2 versions earlier than 22.2R3-S3;
  *  22.3 versions earlier than 22.3R3-S1;
  *  22.4 versions earlier than 22.4R3;
  *  23.2 versions earlier than 23.2R1-S2, 23.2R2;



Junos OS Evolved:
  *  20.4-EVO versions 20.4R1-EVO and later versions earlier than 20.4R3-S9-EVO;
  *  21.2-EVO versions earlier than 21.2R3-S7-EVO;
  *  21.3-EVO versions earlier than 21.3R3-S5-EVO;
  *  21.4-EVO versions earlier than 21.4R3-S5-EVO;
  *  22.1-EVO versions earlier than 22.1R3-S4-EVO;
  *  22.2-EVO versions earlier than 22.2R3-S3-EVO;
  *  22.3-EVO versions earlier than 22.3R3-S1-EVO;
  *  22.4-EVO versions earlier than 22.4R3-EVO;
  *  23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO;



This issue does not affect Juniper Networks
  *  Junos OS versions earlier than 20.4R1;
  *  Junos OS Evolved versions earlier than 20.4R1-EVO.



This is a related but separate issue than the one described in JSA79095.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <http://supportportal.juniper.net/JSA75739>
- <https://www.first.org/cvss/calculator/4.0#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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-21598) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_