Unchecked return value in Junos OS and Junos OS Evolved - CVE-2024-39558
Published: July 15, 2024
Vulnerability identifier: #VU94350
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-39558
CWE-ID: CWE-252
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to unchecked return value error in the Routing Protocol Daemon (rpd). A remote non-authenticated attacker can send a specific PIM packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS), when PIM is configured with Multicast-only Fast Reroute (MoFRR).
Affected software
Junos OS
Junos OS Evolved
Junos OS Evolved
How to mitigate CVE-2024-39558
Install updates from vendor's website.
Junos OS - addressed in versions 20.4R3-S10, 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3, 22.4R2, 23.2R1
Junos OS Evolved - addressed in versions 20.4R3-S10-EVO, 21.2R3-S7-EVO, 21.4R3-S6-EVO, 22.1R3-S5-EVO, 22.2R3-S3-EVO, 22.3R3-EVO, 22.4R2-EVO, 23.2R1-EVO
Junos OS Evolved - addressed in versions 20.4R3-S10-EVO, 21.2R3-S7-EVO, 21.4R3-S6-EVO, 22.1R3-S5-EVO, 22.2R3-S3-EVO, 22.3R3-EVO, 22.4R2-EVO, 23.2R1-EVO