CVEvulnerability

CVE-2019-18948

7.5 HIGH Published 2020-04-16 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-04-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

An issue was found in Arista EOS. Specific malformed ARP packets can impact the software forwarding of VxLAN packets. This issue is found in Arista’s EOS VxLAN code, which can allow attackers to crash the VxlanSwFwd agent. This affects EOS 4.21.8M and below releases in the 4.21.x train, 4.22.3M and below releases in the 4.22.x train, 4.23.1F and below releases in the 4.23.x train, and all releases in 4.15, 4.16, 4.17, 4.18, 4.19, 4.20 code train.

Affected configurations

• arista eos (>= 4.21.0 <= 4.21.8m) • arista eos (>= 4.22.0 <= 4.22.3m) • arista eos (>= 4.23.0 <= 4.23.1f) • arista eos 4.15 • arista eos 4.16 • arista eos 4.17 • arista eos 4.18 • arista eos 4.19 • arista eos 4.20

References