SB2023101729 - Denial of service in Junos OS and Junos OS Evolved l2cpd



SB2023101729 - Denial of service in Junos OS and Junos OS Evolved l2cpd

Published: October 17, 2023

Security Bulletin ID SB2023101729
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper validation of specified quantity in input (CVE-ID: CVE-2023-36839)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of specified quantity in input in the layer-2 control protocols daemon (l2cpd). A remote attacker on the local network can send specially crafted LLDP packet to the affected device to perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.