Main Vulnerability Database SB2022041355

SB2022041355 - Denial of service in Junos OS and Junos OS Evolved rpd

Published: April 13, 2022 Updated: October 26, 2023

Security Bulletin ID SB2022041355

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Adjecent network

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Improper check for unusual or exceptional conditions (CVE-ID: CVE-2022-22196)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: 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

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 the Routing Protocol Daemon (rpd). A remote non-authenticated attacker can cause a Denial of Service (DoS).

The rpd CPU spikes to 100% after a malformed ISIS TLV has been received which will lead to processing issues of routing updates and in turn traffic impact.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-The-rpd-CPU-spikes-to-100-after-a-malformed-ISIS-TLV-has-been-received-CVE-2022-22196