Improper check for unusual or exceptional conditions in Junos OS - CVE-2023-36842
Published: January 10, 2024
Vulnerability identifier: #VU85283
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-2023-36842
CWE-ID: CWE-754
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 improper check for unusual or exceptional conditions error in Juniper DHCP Daemon (jdhcpd). A remote non-authenticated attacker can cause the jdhcpd to consume all the CPU cycles resulting in a Denial of Service (DoS).
Affected software
Junos OS
How to mitigate CVE-2023-36842
Install updates from vendor's website.
Junos OS - addressed in versions 20.4R3-S9, 21.2R3-S7, 21.3R3-S5, 21.4R3-S5, 22.1R3-S4, 22.2R3-S3, 22.3R3-S2, 22.4R2-S2, 22.4R3, 23.2R1-S2, 23.2R2, 23.4R1