CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 0CVE-2019-10876 – openstack-neutron: DOS via broken port range merging in security group
https://notcve.org/view.php?id=CVE-2019-10876
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 security groups are present, because of an Open vSwitch (OVS) firewall KeyError. All Neutron deployments utilizing neutron-openvswitch-agent are affected. Se ha descubierto un problema en OpenStack Neutron, en las versiones 11.x anteriores a la 11.0.7, en las 12.x anteriores a la 12.0.6 y en las 13.x anteriores a la 13.0.3. Al crear dos grupos de seguridad con rangos de puertos separados/solapados, un usuario autenticado podría impedir que Neutron sea capaz de configurar las redes en cualquier nodo de cálculo donde se encuentran dichos grupos de seguridad, debido a un error de claves en el firewall de Open vSwitch (OVS). • http://www.openwall.com/lists/oss-security/2019/04/09/2 https://access.redhat.com/errata/RHSA-2019:0879 https://access.redhat.com/errata/RHSA-2019:0935 https://bugs.launchpad.net/ossa/+bug/1813007 https://review.openstack.org/#/q/topic:bug/1813007 https://security.openstack.org/ossa/OSSA-2019-002.html https://access.redhat.com/security/cve/CVE-2019-10876 https://bugzilla.redhat.com/show_bug.cgi?id=1695883 • CWE-20: Improper Input Validation •
CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 1CVE-2019-9735 – openstack-neutron: incorrect validation of port settings in iptables security group driver
https://notcve.org/view.php?id=CVE-2019-9735
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 authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.) Se ha detectado un fallo en el módulo de firewall iptables en OpenStack Neutron en versiones anteriores a la 10.0.8, en las 11.x anteriores a la 11.0.7, en las 12.x anteriores a la 12.0.6 y en las 13.x anteriores a la 13.0.3. Al establecer un puerto de destino en una regla de grupo de seguridad, junto con un protocolo que no soporta dicha opción (p.ej., VRRP), un usuario autenticado podría bloquear la mayor aplicación de esas reglas de grupo de seguridad para instancias desde cualquier project/tenant en los hosts de computación a los cuales se aplican. • http://www.openwall.com/lists/oss-security/2019/03/18/2 http://www.securityfocus.com/bid/107390 https://access.redhat.com/errata/RHSA-2019:0879 https://access.redhat.com/errata/RHSA-2019:0916 https://access.redhat.com/errata/RHSA-2019:0935 https://launchpad.net/bugs/1818385 https://seclists.org/bugtraq/2019/Mar/24 https://security.openstack.org/ossa/OSSA-2019-001.html https://usn.ubuntu.com/4036-1 https://www.debian.org/security/2019/dsa-4409 https://a • CWE-20: Improper Input Validation CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 0CVE-2018-14636
https://notcve.org/view.php?id=CVE-2018-14636
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 to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable. • https://bugs.launchpad.net/neutron/+bug/1734320 https://bugs.launchpad.net/neutron/+bug/1767422 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636 • CWE-300: Channel Accessible by Non-Endpoint •
CVSS: 6.5EPSS: 0%CPEs: 6EXPL: 0CVE-2018-14635 – openstack-neutron: A router interface out of subnet IP range results in a denial of service
https://notcve.org/view.php?id=CVE-2018-14635
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 outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable. Al emplear el controlador de Linux bridge ml2, los inquilinos sin privilegios pueden crear y adjuntar puertos sin especificar una dirección IP, omitiendo la validación de direcciones IP. Podría ocurrir una denegación de servicio (DoS) si una dirección IP, en conflicto con invitados o routers existentes, se asigna desde fuera del grupo de asignación permitido. • https://access.redhat.com/errata/RHSA-2018:2710 https://access.redhat.com/errata/RHSA-2018:2715 https://access.redhat.com/errata/RHSA-2018:2721 https://access.redhat.com/errata/RHSA-2018:3792 https://bugs.launchpad.net/neutron/+bug/1757482 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14635 https://git.openstack.org/cgit/openstack/neutron/commit/?id=54aa6e81cb17b33ce4d5d469cc11dec2869c762d https://access.redhat.com/security/cve/CVE-2018-14635 https://bugzilla.redhat.com/show • CWE-20: Improper Input Validation •
CVSS: 5.9EPSS: 0%CPEs: 12EXPL: 0CVE-2017-7543 – openstack-neutron: iptables not active after update
https://notcve.org/view.php?id=CVE-2017-7543
A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources. Se ha descubierto una condición de carrera en openstack-neutron en versiones anteriores a la 7.2.0-12.1, 8.x anteriores a la 8.3.0-11.1, 9.x anteriores a la 9.3.1-2.1 y 10.x anteriores a la 10.0.2-1.1, cuando, siguiendo a una actualización overcloud menor, los grupos de seguridad neutron estaban deshabilitados. De manera específica, lo siguiente se ha reiniciado a 0: net.bridge.bridge-nf-call-ip6tables y net.bridge.bridge-nf-call-iptables. • http://www.securityfocus.com/bid/100237 https://access.redhat.com/errata/RHSA-2017:2447 https://access.redhat.com/errata/RHSA-2017:2448 https://access.redhat.com/errata/RHSA-2017:2449 https://access.redhat.com/errata/RHSA-2017:2450 https://access.redhat.com/errata/RHSA-2017:2451 https://access.redhat.com/errata/RHSA-2017:2452 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543 https://access.redhat.com/security/cve/CVE-2017-7543 https://bugzilla.redhat.com/sh • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •