Main Vulnerability Database SB2023011189

SB2023011189 - Resource exhaustion in Juniper Junos OS

Published: January 11, 2023

Security Bulletin ID SB2023011189

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Resource exhaustion (CVE-ID: CVE-2023-22396)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/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.

An Uncontrolled Resource Consumption vulnerability in TCP processing on the Routing Engine (RE) of Juniper Networks Junos OS allows an unauthenticated network-based attacker to send crafted TCP packets destined to the device, resulting in an MBUF leak that ultimately leads to a Denial of Service (DoS).

The system does not recover automatically and must be manually restarted to restore service.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-Receipt-of-crafted-TCP-packets-on-Ethernet-console-port-results-in-MBUF-leak-leading-to-Denial-of-Service-DoS-CVE-2023-22396