Heap-based buffer overflow in Junos OS - CVE-2024-21594
Published: January 10, 2024
Vulnerability identifier: #VU85277
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-21594
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to heap-based buffer overflow error in the Network Services Daemon (NSD). A local authenticated user can cause a Denial of Service (DoS).
On an SRX 5000 Series device, when executing a specific command repeatedly, memory is corrupted, which leads to a Flow Processing Daemon (flowd) crash.
The NSD process has to be restarted to restore services.
Affected software
Junos OS
How to mitigate CVE-2024-21594
Install updates from vendor's website.
Junos OS - addressed in versions 20.4R3-S6, 21.1R3-S5, 21.2R3-S4, 21.3R3-S3, 21.3R3-S4, 21.4R3-S3, 22.1R3-S1, 22.2R3, 22.3R2, 22.4R1, 22.4R2, 23.1R1