Arista Networks EOS LDP DoS (SA0042)

medium Nessus Plugin ID 134418

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Synopsis

The version of Arista Networks EOS running on the remote device is affected by a denial of service vulnerability.

Description

The version of Arista Networks EOS running on the remote device is affected by a denial of service vulnerability in the Label Distribution Protocol (LDP). An unauthenticated, remote attacker can exploit this by establishing an LDP session with the EOS device under race conditions and sending route updates in order to cause an Out of Memory (OOM) condition that is disruptive to traffic forwarding.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the patch or upgrade to a fixed version as referenced in the vendor advisory.

Plugin Details

Severity: Medium

ID: 134418

File Name: arista_eos_sa0042.nasl

Version: 1.4

Type: combined

Family: Misc.

Published: 3/11/2020

Updated: 3/13/2020

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2019-14810

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:arista:eos

Required KB Items: Settings/ParanoidReport, Host/Arista-EOS/Version, Host/Arista-EOS/model

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2019

Vulnerability Publication Date: 10/9/2019

Reference Information

CVE: CVE-2019-14810

Detections

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