CVE-2024-39551 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://supportportal.juniper.net/JSA83013

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5