CVE-2021-28505

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductArista Eos
PublishedApr 14, 2022
First seenApr 14, 2022

How to fix

Update
  • arista eos4.26.4m, 4.27.1f or later

Affected products

ProductAffected versionsFixed in
arista eos4.26 ≤ v < 4.26.4m, 4.27 ≤ v < 4.27.1f4.26.4m, 4.27.1f

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