CVE-2024-39551

Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets in H.323 ALG causes traffic drop

Severity Score

8.7

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

An Uncontrolled Resource Consumption vulnerability in the H.323 ALG (Application Layer Gateway) of Juniper Networks Junos OS on SRX Series and MX Series with SPC3 and MS-MPC/MIC, allows an unauthenticated network-based attacker to send specific packets causing traffic loss leading to Denial of Service (DoS).

Continued receipt and processing of these specific packets will sustain the Denial of Service condition.

The memory usage can be monitored using the below command.

user@host> show usp memory segment sha data objcache jsf
This issue affects SRX Series and MX Series with SPC3 and MS-MPC/MIC:

* 20.4 before 20.4R3-S10,
* 21.2 before 21.2R3-S6,
* 21.3 before 21.3R3-S5,
* 21.4 before 21.4R3-S6,
* 22.1 before 22.1R3-S4,
* 22.2 before 22.2R3-S2,
* 22.3 before 22.3R3-S1,
* 22.4 before 22.4R3,
* 23.2 before 23.2R2.

Una vulnerabilidad de consumo de recursos no controlado en H.323 ALG (Application Layer Gateway) de Juniper Networks Junos OS en las series SRX y MX con SPC3 y MS-MPC/MIC, permite que un atacante basado en red no autenticado envíe paquetes específicos que causen pérdida de tráfico. lo que lleva a una denegación de servicio (DoS). La recepción y el procesamiento continuo de estos paquetes específicos mantendrán la condición de Denegación de Servicio. El uso de la memoria se puede monitorear usando el siguiente comando. usuario@host> show usp memory segment sha data objcache jsf Este problema afecta a las series SRX y MX con SPC3 y MS-MPC/MIC: * 20.4 antes de 20.4R3-S10, * 21.2 antes de 21.2R3-S6, * 21.3 antes de 21.3R3 -S5, *21.4 antes de 21.4R3-S6, *22.1 antes de 22.1R3-S4, *22.2 antes de 22.2R3-S2, *22.3 antes de 22.3R3-S1, *22.4 antes de 22.4R3, *23.2 antes de 23.2R2.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

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

2024-06-25 CVE Reserved
2024-07-11 CVE Published
2024-07-12 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportportal.juniper.net/JSA83013	2024-07-11

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"				>= 20.4 < 20.4R3-S10 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 20.4 < 20.4R3-S10"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 21.2 < 21.2R3-S6 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.2 < 21.2R3-S6"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 21.3 < 21.3R3-S5 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.3 < 21.3R3-S5"		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-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.1 < 22.1R3-S4"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.2 < 22.2R3-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.3 < 22.3R3-S1 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S1"		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 < 23.2R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2"		en		Affected