Use-after-free in Junos OS Evolved and Junos OS - CVE-2024-39528
Published: July 12, 2024
Vulnerability identifier: #VU94186
CSH Severity: Medium
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-39528
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to use after free error in the Routing Protocol Daemon (rpd). A remote user can cause a denial of service (DoS) attack.
On all Junos OS and Junos Evolved platforms, if a routing-instance deactivation is triggered, and at the same time a specific SNMP request is received, a segmentation fault occurs which causes rpd to crash and restart.
Affected software
Junos OS Evolved
Junos OS
Junos OS
How to mitigate CVE-2024-39528
Install updates from vendor's website.
Junos OS Evolved - addressed in versions 21.2R3-S8-EVO, 21.4R3-S5-EVO, 22.2R3-S3-EVO, 22.3R3-S2-EVO, 22.4R3-EVO, 23.2R2-EVO, 23.4R1-EVO
Junos OS - addressed in versions 21.2R3-S8, 21.4R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1
Junos OS - addressed in versions 21.2R3-S8, 21.4R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, 23.2R2, 23.4R1