CVE-2024-39543

MEDIUM

Juniper Junos < 21.2 - Buffer Overflow

Title source: rule
STIX 2.1

Description

A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. 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-S2,  * from 23.2 before 23.2R2-S1,  * from 23.4 before 23.4R2. 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-S2-EVO,  * from 23.2 before 23.2R2-S1-EVO, * from 23.4 before 23.4R2-EVO.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
https://supportportal.juniper.net/JSA83004

Scores

CVSS v3 6.5
EPSS 0.0015
EPSS Percentile 34.8%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/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-120
Status published
Products (4)
juniper/junos 21.2 (15 CPE variants)
juniper/junos 21.4 (15 CPE variants)
juniper/junos 22.2 (11 CPE variants)
juniper/junos 22.3 (9 CPE variants)
Published Jul 11, 2024
Tracked Since Feb 18, 2026