PT-2024-5535 · Juniper Networks · Junos+1

Published 2024-07-10 · Updated 2024-09-23 · CVE-2024-39528

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 21.2R3-S8 Junos OS versions 21.4 prior to 21.4R3-S5 Junos OS versions 22.2 prior to 22.2R3-S3 Junos OS versions 22.3 prior to 22.3R3-S2 Junos OS versions 22.4 prior to 22.4R3 Junos OS versions 23.2 prior to 23.2R2 Junos OS Evolved versions prior to 21.2R3-S8-EVO Junos OS Evolved versions 21.4-EVO prior to 21.4R3-S5-EVO Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S3-EVO Junos OS Evolved versions 22.3-EVO prior to 22.3R3-S2-EVO Junos OS Evolved versions 22.4-EVO prior to 22.4R3-EVO Junos OS Evolved versions 23.2-EVO prior to 23.2R2-EVO

Description The issue is related to a Use After Free vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved. This vulnerability allows an authenticated, network-based attacker to cause a Denial of Service (DoS) by sending a specific SNMP request when a routing-instance deactivation is triggered, resulting in a segmentation fault that causes rpd to crash and restart.

Recommendations For Junos OS versions prior to 21.2R3-S8, update to version 21.2R3-S8 or later. For Junos OS versions 21.4 prior to 21.4R3-S5, update to version 21.4R3-S5 or later. For Junos OS versions 22.2 prior to 22.2R3-S3, update to version 22.2R3-S3 or later. For Junos OS versions 22.3 prior to 22.3R3-S2, update to version 22.3R3-S2 or later. For Junos OS versions 22.4 prior to 22.4R3, update to version 22.4R3 or later. For Junos OS versions 23.2 prior to 23.2R2, update to version 23.2R2 or later. For Junos OS Evolved versions prior to 21.2R3-S8-EVO, update to version 21.2R3-S8-EVO or later. For Junos OS Evolved versions 21.4-EVO prior to 21.4R3-S5-EVO, update to version 21.4R3-S5-EVO or later. For Junos OS Evolved versions 22.2-EVO prior to 22.2R3-S3-EVO, update to version 22.2R3-S3-EVO or later. For Junos OS Evolved versions 22.3-EVO prior to 22.3R3-S2-EVO, update to version 22.3R3-S2-EVO or later. For Junos OS Evolved versions 22.4-EVO prior to 22.4R3-EVO, update to version 22.4R3-EVO or later. For Junos OS Evolved versions 23.2-EVO prior to 23.2R2-EVO, update to version 23.2R2-EVO or later.

Fix

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2024-06201

CVE-2024-39528

Affected Products

Junos

Junos Evolved

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2024-39528 · Security Note
• https://supportportal.juniper.net/JSA82987 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06201 · Security Note
• https://osv.dev/vulnerability/CVE-2024-39528 · Vendor Advisory
• https://twitter.com/CVEnew/status/1811440421526016211 · Twitter Post
• https://t.me/cvedetector/666 · Telegram Post
• https://t.me/cvenotify/95639 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2024071218 · Note