CVE-2021-28505 Information

Description

On affected Arista EOS platforms if a VXLAN match rule exists in an IPv4 access-list that is applied to the ingress of an L2 or an L3 port/SVI the VXLAN rule and subsequent ACL rules in that access list will ignore the specified IP protocol.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://www.arista.com/en/support/advisories-notices/security-advisories/15267-security-advisory-0073

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5