Detections
Analytics

SCA: security update for neutron (GHSA-hvm4-mc7m-22w4)

high Tenable Self-Hosted Container Security Plugin ID 434488

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when
 the linuxbridge driver with ebtables-nft is used on a Netfilter-based platform. By sending carefully
 crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate
 the hardware addresses of other systems on the network, resulting in denial of service or in some cases
 possibly interception of traffic intended for other destinations. (CVE-2021-38598)

See Also

https://github.com/advisories/GHSA-hvm4-mc7m-22w4

Plugin Details

Severity: High

ID: 434488

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/19/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.06

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2021-38598

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 7.8

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/24/2022

Vulnerability Publication Date: 8/23/2021

Reference Information

CVE: CVE-2021-38598

cwe: CWE-863