SB2025051722 - Incorrect handling of VLAN tags in Arista EOS
Published: May 17, 2025
Security Bulletin ID
SB2025051722
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2024-5872)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/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 insufficient validation of user-supplied input when handling VLAN tags. A remote attacker on the local network can send packets with specially crafted VLAN tags and perform a denial of service (DoS) attack or cause incorrect control plane behavior.
Remediation
Install update from vendor's website.