#VU88437 Improper check for unusual or exceptional conditions in Junos OS Evolved and Juniper Junos OS - CVE-2024-30402
Published: April 10, 2024
Vulnerability identifier: #VU88437
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-30402
CWE-ID: CWE-754
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Junos OS Evolved
Juniper Junos OS
Junos OS Evolved
Juniper Junos OS
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an improper check for unusual or exceptional conditions error in the Layer 2 Address Learning Daemon (l2ald). A remote non-authenticated attacker can cause a Denial of Service (DoS).
When telemetry requests are sent to the device, and the Dynamic Rendering Daemon (drend) is suspended, the l2ald crashes and restarts due to factors outside the attackers control.
Repeated occurrences of these events causes a sustained DoS condition.
Remediation
Install updates from vendor's website.