// For flags

CVE-2024-30398

Junos OS: SRX4600 Series - A high amount of specific traffic causes packet drops and an eventual PFE crash

Severity Score

8.7
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet handling, a consistent rise in CPU memory utilization occurs. This results in packet drops in the traffic and eventually the PFE crashes. A manual reboot of the PFE will be required to restore the device to original state.

This issue affects Junos OS:  


* 21.2 before 21.2R3-S7,
* 21.4 before 21.4R3-S6, 
* 22.1 before 22.1R3-S5,
* 22.2 before 22.2R3-S3,
* 22.3 before 22.3R3-S2,
* 22.4 before 22.4R3,

* 23.2 before 23.2R1-S2, 23.2R2.

Una restricción inadecuada de operaciones dentro de los límites de una vulnerabilidad de búfer de memoria en el motor de reenvío de paquetes (PFE) de Juniper Networks Junos OS permite que un atacante no autenticado basado en la red provoque una denegación de servicio (DoS). Cuando se recibe una gran cantidad de tráfico específico en un dispositivo SRX4600, debido a un error en el manejo de paquetes internos, se produce un aumento constante en la utilización de la memoria de la CPU. Esto da como resultado caídas de paquetes en el tráfico y, finalmente, el PFE falla. Será necesario reiniciar manualmente el PFE para restaurar el dispositivo a su estado original. Este problema afecta a Junos OS: 21.2 anterior a 21.2R3-S7, 21.4 anterior a 21.4R3-S6, 22.1 anterior a 22.1R3-S5, 22.2 anterior a 22.2R3-S3, 22.3 anterior a 22.3R3-S2, 22.4 anterior a 22.4R3, 23.2 anterior a 23.2R1 -S2, 23.2R2.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
None
None
Integrity
None
None
Availability
High
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-03-26 CVE Reserved
  • 2024-04-12 CVE Published
  • 2024-04-21 EPSS Updated
  • 2024-08-08 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 21.2 < 21.2R3-S7
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.2 < 21.2R3-S7"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 21.4 < 21.4R3-S6
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.4 < 21.4R3-S6"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.1 < 22.1R3-S5
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.1 < 22.1R3-S5"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.2 < 22.2R3-S3
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S3"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.3 < 22.3R3-S2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S2"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 22.4 < 22.4R3
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 23.2 < 23.2R1-S2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R1-S2"
en
Affected
Juniper Networks
Search vendor "Juniper Networks"
Junos OS
Search vendor "Juniper Networks" for product "Junos OS"
>= 23.2 < 23.2R2
Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2"
en
Affected