SB2024092623 - Denial of service in Cisco Catalyst 9000 Series Switches



SB2024092623 - Denial of service in Cisco Catalyst 9000 Series Switches

Published: September 26, 2024

Security Bulletin ID SB2024092623
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Integer overflow (CVE-ID: CVE-2024-20434)

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

The vulnerability exists due to improper handling of frames with VLAN tag information. A remote attacker on the local network can pass specially crafted data to the application, trigger integer overflow and cause a denial of service condition on the target system.


Remediation

Install update from vendor's website.