Main Vulnerability Database Vulnerabilities #VU65402

#VU65402 Improper Handling of Exceptional Conditions in Juniper Junos OS - CVE-2022-22202

Published: July 18, 2022

Vulnerability identifier: #VU65402

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-2022-22202

CWE-ID: CWE-755

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
Juniper Junos OS

Software vendor:
Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to perform a DoS attack.

The vulnerability exists due to improper error handling when processing MPLS packets. A remote attacker on the local network can send specially crafted MPLS packets to the affected device and perform a denial of service attack by crashing the dcpfe process.

Remediation

Install updates from vendor's website.

External links

https://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-PTX-Series-FPCs-may-restart-unexpectedly-upon-receipt-of-specific-MPLS-packets-with-certain-multi-unit-interface-configurations-CVE-2022-22202