GHSA-8Q95-JJ7P-X93X Openstack Neutron vulnerable to eavesdropping on private traffic

Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due ...

GHSA-9773-3FQG-8W25 OpenStack Neutron's unsupported dport option prevents applying security groups

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 group rule along with a protocol that doesn't support that option for example, VRRP, an...

OpenStack Neutron's unsupported dport option prevents applying security groups

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 group rule along with a protocol that doesn't support that option for example, VRRP, an...

GHSA-JR9M-V5QH-MH2J OpenStack Neutron overlapping security group rules prevents compute node network configuration

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 user may prevent Neutron from being able to configure networks on any compute nodes where those...

GHSA-X634-34M9-96MP OpensStack Neutron Denial of Service Vulnerability

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 could occur if an IP address, conflicting with existing guests or routers, is then assigned from...

Denial Of Service (DoS)

openstack-neutron is vulnerable to denial of service. The vulnerability exists in openstack-neutron because an API worker consumes increasing amounts of memory, resulting in API performance degradation which allows an authenticated attacker to make API requests involving nonexistent controllers...

openstack-neutron: Routes middleware memory leak for nonexistent controllers

A resource-allocation flaw was found in openstack-neutron. An authenticated attacker could make API requests involving nonexistent controllers causing the API worker to consume increasing amounts of memory. This flaw could be exploited to force API performance degradation or denial of service...

openstack-neutron: Routes middleware memory leak for nonexistent controllers

A resource-allocation flaw was found in openstack-neutron. An authenticated attacker could make API requests involving nonexistent controllers causing the API worker to consume increasing amounts of memory. This flaw could be exploited to force API performance degradation or denial of service...

Security Bulletin: Openstack Compute (Neutron) noVNC proxy

Summary Fix OpenStack Neutron allowing a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the noVNC component. By modifying untrusted URL input using multiple backslashes, an attacker could exploit this vulnerability to redirect a victim to arbitrary websit...

Debian: Security Advisory (DLA-2781-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Debian DSA-4983-1 : neutron - security update

The remote Debian 10 / 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-4983 advisory. Pavel Toporkov discovered a vulnerability in Neutron, the OpenStack virtual network service, which allowed a reconfiguration of dnsmasq via crafted...

Debian DLA-2781-1 : neutron - LTS security update

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2781 advisory. - 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...

openstack-neutron: arbitrary dnsmasq reconfiguration via extra_dhcp_opts

An input-validation flaw was found in openstack-neutron, where an authenticated attacker could change the dnsmasq configuration. By crafting extradhcpopts values, the attacker could crash the dnsmasq, change parameters for tenants sharing the same interface, or otherwise alter that daemon’s...

openstack-neutron: arbitrary dnsmasq reconfiguration via extra_dhcp_opts

An input-validation flaw was found in openstack-neutron, where an authenticated attacker could change the dnsmasq configuration. By crafting extradhcpopts values, the attacker could crash the dnsmasq, change parameters for tenants sharing the same interface, or otherwise alter that daemon’s...

openstack-neutron: arbitrary dnsmasq reconfiguration via extra_dhcp_opts

An input-validation flaw was found in openstack-neutron, where an authenticated attacker could change the dnsmasq configuration. By crafting extradhcpopts values, the attacker could crash the dnsmasq, change parameters for tenants sharing the same interface, or otherwise alter that daemon’s...

CVE-2021-40797

A resource-allocation flaw was found in openstack-neutron. An authenticated attacker could make API requests involving nonexistent controllers causing the API worker to consume increasing amounts of memory. This flaw could be exploited to force API performance degradation or denial of service...

openstack-neutron: arbitrary dnsmasq reconfiguration via extra_dhcp_opts

An input-validation flaw was found in openstack-neutron, where an authenticated attacker could change the dnsmasq configuration. By crafting extradhcpopts values, the attacker could crash the dnsmasq, change parameters for tenants sharing the same interface, or otherwise alter that daemon’s...

CVE-2021-40797

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 authenticated user may cause the API worker to consume increasing amounts of memory, resulting in API...

DEBIAN-CVE-2021-40797

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 authenticated user may cause the API worker to consume increasing amounts of memory, resulting in API...

Denial of service

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 authenticated user may cause the API worker to consume increasing amounts of memory, resulting in API...