CVE-2024-39538 Information

Description

A Buffer Copy without Checking Size of Input vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated adjacent attacker to cause a 

Denial-of-Service (DoS).When multicast traffic with a specific valid (SG) is received evo-pfemand crashes which leads to an outage of the affected FPC until it is manually recovered.

This issue affects Junos OS Evolved on ACX7000 Series:

All versions before 21.2R3-S8-EVO
21.4-EVO versions before 21.4R3-S7-EVO
22.2-EVO versions before 22.2R3-S4-EVO
22.3-EVO versions before 22.3R3-S3-EVO 
22.4-EVO versions before 22.4R3-S2-EVO 
23.2-EVO versions before 23.2R2-EVO 
23.4-EVO versions before 23.4R1-S2-EVO 23.4R2-EVO.

CVSS Vector

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

Reference

https://supportportal.juniper.net/JSA82998

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

6.5