CVE-2021-20267 – neutron

Package

Manager: pip
Name: neutron
Vulnerable Version: >=16.0.0 <16.3.1 || >=0 <15.3.3 || >=17.0.0 <17.1.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00123 pctl0.32293

Details

Openstack Neutron has Insufficient Verification of IPv6 addresses A flaw was found in openstack-neutron's default Open vSwitch firewall rules. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the IPv6 addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations. Only deployments using the Open vSwitch driver are affected. Source: OpenStack project. Versions before openstack-neutron 15.3.3, openstack-neutron 16.3.1 and openstack-neutron 17.1.1 are affected.

Metadata

Created: 2022-05-24T19:03:37Z
Modified: 2024-09-26T14:51:10Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-w8hx-f868-pvch/GHSA-w8hx-f868-pvch.json
CWE IDs: ["CWE-345"]
Alternative ID: GHSA-w8hx-f868-pvch
Finding: F204
Auto approve: 1