CVE-2024-39549 Information

Description

A Missing Release of Memory after Effective Lifetime vulnerability in the routing process daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to log the bad path attribute. This memory is not properly freed in all circumstances leading to a Denial of Service (DoS).

Consumed memory can be freed by manually restarting Routing Protocol Daemon (rpd).

Memory utilization could be monitored by:  user@host> show system memory or show system monitor memory status

This issue affects:

Junos OS:  All versions before 21.2R3-S8  from 21.4 before 21.4R3-S8

from 22.2 before 22.2R3-S4 
from 22.3 before 22.3R3-S3 
from 22.4 before 22.4R3-S3
from 23.2 before 23.2R2-S1 
from 23.4 before 23.4R1-S2 23.4R2
from 24.2 before 24.2R2-EVO.

Junos OS Evolved: All versions before 21.2R3-S8-EVO from 21.4 before 21.4R3-S8-EVO from 22.2 before 22.2R3-S4-EVO from 22.3 before 22.3R3-S3-EVO from 22.4 before 22.4R3-S3-EVO

from 23.2 before 23.2R2-S1-EVO 
from 23.4 before 23.4R1-S2 23.4R2
from 24.2 before 24.2R2-EVO.

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/JSA83011

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