Main Vulnerability Database SB2022101266

SB2022101266 - Denial of service in Junos OS FPC

Published: October 12, 2022

Security Bulletin ID SB2022101266

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 control of a resource through its lifetime (CVE-ID: CVE-2022-22249)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect control over memory operations in the Packet Forwarding Engine (PFE). A remote attacker on the local network can cause one or more FPCs to crash and reboot, resulting in a denial of service (DoS) condition.

The vulnerability affects Juniper Networks Junos OS on MX Series.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-MX-Series-An-FPC-crash-might-be-seen-due-to-mac-moves-within-the-same-bridge-domain-CVE-2022-22249