CVE-2024-39539

MEDIUM

Juniper Junos OS MX Series DoS via Subscriber Login Memory Leak

Title source: llm
STIX 2.1

Description

A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS). In a subscriber management scenario continuous subscriber logins will trigger a memory leak and eventually lead to an FPC crash and restart. This issue affects Junos OS on MX Series: * All version before 21.2R3-S6, * 21.4 versions before 21.4R3-S6, * 22.1 versions before 22.1R3-S5, * 22.2 versions before 22.2R3-S3,  * 22.3 versions before 22.3R3-S2, * 22.4 versions before 22.4R3, * 23.2 versions before 23.2R2.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
https://supportportal.juniper.net/JSA82999

Scores

CVSS v3 5.3
EPSS 0.0015
EPSS Percentile 34.9%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (5)
juniper/junos 21.2 (13 CPE variants)
juniper/junos 21.4 (13 CPE variants)
juniper/junos 22.1 (12 CPE variants)
juniper/junos 22.2 (10 CPE variants)
juniper/junos 22.3 (2 CPE variants)
Published Jul 11, 2024
Tracked Since Feb 18, 2026