Input validation error in Junos OS - CVE-2023-36848
Published: July 16, 2023
Vulnerability identifier: #VU78283
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-2023-36848
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the periodic packet management daemon (PPMD) of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600). A remote attacker on the local network can send a malformed CFM packet to the affected device and crash the FPC.
Affected software
Junos OS
How to mitigate CVE-2023-36848
Install updates from vendor's website.
Junos OS - addressed in versions 19.1R3-S10, 19.2R3-S7, 19.3R3-S8, 19.4R3-S12, 20.2R3-S8, 20.4R3-S7, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S4, 22.1R3-S3, 22.2R3-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1