Wysoka

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 impersonat

Ujawniono: 28.05.2021
Aktualizacja: 11.10.2026 12:20

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.

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Platforma	Paczka	Podatne wersje	Poprawka w wersji
Python (PyPI)	neutron	< 15.3.3, >= 16.0.0, < 16.3.1, >= 17.0.0, < 17.1.1	15.3.3, 16.3.1, 17.1.1

Odnośniki

Ocena CVSS 7.1/10

Wektor CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Słabość (CWE): CWE-345
Platforma: Python (PyPI)
Paczka: neutron
Ujawniono: 28.05.2021
Aktualizacja: 11.10.2026 12:20

Źródła i licencje

OSV / GitHub Advisory Database - GHSA-w8hx-f868-pvch - CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2021-136 - PyPA Advisory Database; CC BY 4.0

Historia podatności: neutron

Wszystkie opisane podatności tej paczki (Python (PyPI)), od najnowszej. Widać, czy to jednorazowa wpadka, czy paczka, której trzeba pilnować.

Wszystkie (21) w archiwum

Wszystkich wpisów: 21
Pierwsza → ostatnia: 09.2018 06.2026
Bez poprawki: 1
Wykorzystywana w atakach: 0

Rozkład istotności

Krytyczna 1
Wysoka 9
Średnia 9
Niska 2

Ujawnienia w latach

2018: 2
2019: 2
2020: 0
2021: 4
2022: 8
2023: 2
2024: 1
2025: 0
2026: 2

17.05.2022

OpenStack Neutron Intended MAC-spoofing protection mechanism bypass

Wysoka · 8.2 CVE-2016-5363 < 7.1.0, >= 8.0.0, < 8.1.0 7.1.0, 8.1.0
14.05.2022

OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism

Wysoka · 8.2 CVE-2016-5362 < 7.0.5, >= 8.0.0, < 8.1.1 7.0.5, 8.1.1
14.05.2022

OpenStack Neutron allows remote attackers to bypass an intended ICMPv6-spoofing protection mechanism

Krytyczna · 9.1 CVE-2015-8914 < 7.0.5, >= 8.0.0, < 8.1.1 7.0.5, 8.1.1
08.09.2021

An issue was discovered in the routes middleware in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. By making API requests involving nonexistent controllers, an authentica

Wysoka · 6.5 CVE-2021-40797 < 16.4.1, >= 17.0.0, < 17.2.1, >= 18.0.0, < 18.1.1 16.4.1, 17.2.1, 18.1.1
31.08.2021

An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.

Wysoka · 6.5 CVE-2021-40085 < 16.4.1, >= 17.0.0, < 17.2.1, >= 18.0.0, < 18.1.1 16.4.1, 17.2.1, 18.1.1
23.08.2021

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 ca

Wysoka · 9.1 CVE-2021-38598 < 16.4.1, >= 17.0.0, < 17.1.3, >= 18.0.0, < 18.1.0 16.4.1, 17.1.3, 18.1.0
28.05.2021

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 impersonat ten wpis

Wysoka · 7.1 CVE-2021-20267 < 15.3.3, >= 16.0.0, < 16.3.1, >= 17.0.0, < 17.1.1 15.3.3, 16.3.1, 17.1.1
05.04.2019

An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By creating two security groups with separate/overlapping port ranges, an authenticated use

Wysoka · 6.5 CVE-2019-10876 >= 12.0.0, < 12.0.6, < 11.0.7, >= 13.0.0, < 13.0.3 12.0.6, 11.0.7, 13.0.3
13.03.2019

An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security

Wysoka · 6.5 CVE-2019-9735 >= 12.0.0, < 12.0.6, >= 13.0.0, < 13.0.3, >= 11.0.0, < 11.0.7, < 10.0.8 12.0.6, 13.0.3, 11.0.7, 10.0.8
10.09.2018

When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service coul

Wysoka · 6.5 CVE-2018-14635 < 11.0.6, >= 12.0.0, < 12.0.4 11.0.6, 12.0.4

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