CVE-2021-28505: 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…

PriorityP343high7.5CVSS 3.1

AVNACLPRNUINSUCNIHAN

EPSS

0.84%

53.3th percentile

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.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
arista	eos	>= 4.26 < 4.26.4m	4.26.4m
arista	eos	>= 4.27 < 4.27.1f	4.27.1f
arista_networks	eos	4.26.3M – 4.26.0	—
arista_networks	eos	4.27.0F – 4.27.0	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N

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