Home/CVE/In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability
CVE

CVE-2020-15898

In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability

In Arista EOS malformed packets can be incorrectly forwarded across VLAN boundaries in one direction. This vulnerability is only susceptible to exploitation by unidirectional traffic (ex. UDP) and not bidirectional traffic (ex. TCP). This affects: EOS 7170 platforms version 4.21.4.1F and below releases in the 4.21.x train.

EOS X-Series versions 4.21.11M and below releases in the 4.21.x train.

4.22.6M and below releases in the 4.22.x train.

4.23.4M and below releases in the 4.23.x train.

4.24.2.1F and below releases in the 4.24.x train.

MEDIUM · CVSS 5.3 EPSS 0.00212
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
▤

Affected Products & Versions

5
arista eos>= 4.21.0f and <= 4.21.4.1f
arista eos>= 4.21.0f and <= 4.21.11m
arista eos>= 4.22.0f and <= 4.22.6m
arista eos>= 4.23.0f and <= 4.23.4m
arista eos>= 4.24.0f and <= 4.24.2.1f
⚠

Public Exploits & PoCs

1
pocwww.arista.com · 11996-security-advisory-56www.arista.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Dec 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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