#VU78282 Input validation error in Juniper Junos OS - CVE-2023-36850
Published: July 16, 2023
Vulnerability identifier: #VU78282
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2023-36850
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Juniper Junos OS
Juniper Junos OS
Software vendor:
Juniper Networks, Inc.
Juniper Networks, Inc.
Description
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 Connectivity Fault Management(CFM) module 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 system and crash the MPC.
Remediation
Install updates from vendor's website.