SB2023071603 - Denial of service in Junos OS and Junos OS Evolved l2cpd



SB2023071603 - Denial of service in Junos OS and Junos OS Evolved l2cpd

Published: July 16, 2023

Security Bulletin ID SB2023071603
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
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 handling of exceptional conditions (CVE-ID: CVE-2023-36849)

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

The vulnerability exists due to improper handling of errors in the Layer-2 control protocols daemon (l2cpd). A remote attacker can send a malformed LLDP packet to the l2cpd  daemon and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.