CVE-2021-28505

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 14-04-2022 11:15

Last modified: - 26-04-2022 07:09

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Network

Attack vector

None

Availability

None

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.5

Base score

3.9

3.6

Exploitability score

Impact score

Verification logic

AND

vendor=arista AND product=eos AND versionStartIncluding=4.26 AND versionEndExcluding=4.26.4m

vendor=arista AND product=eos AND versionStartIncluding=4.27 AND versionEndExcluding=4.27.1f

vendor=arista AND product=ccs-710p-12 AND version=-

vendor=arista AND product=ccs-710p-16p AND version=-

vendor=arista AND product=ccs-720xp-24y6 AND version=-

vendor=arista AND product=ccs-720xp-24zy4 AND version=-

vendor=arista AND product=ccs-720xp-48y6 AND version=-

vendor=arista AND product=ccs-720xp-48zc2 AND version=-

vendor=arista AND product=ccs-720xp-96zc2 AND version=-

vendor=arista AND product=ccs-722xpm-48y4 AND version=-

vendor=arista AND product=ccs-722xpm-48zy8 AND version=-

vendor=arista AND product=dcs-7010tx-48 AND version=-

vendor=arista AND product=dcs-7050cx3-32s AND version=-

vendor=arista AND product=dcs-7050cx3m-32s AND version=-

vendor=arista AND product=dcs-7050sx3-48c8 AND version=-

vendor=arista AND product=dcs-7050sx3-48yc12 AND version=-

vendor=arista AND product=dcs-7050sx3-48yc8 AND version=-

vendor=arista AND product=dcs-7050sx3-96yc8 AND version=-

vendor=arista AND product=dcs-7050tx3-48c8 AND version=-

Reference

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

Keywords

CVE-2021-28505

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-28505

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures