{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2021-20267","title":"Title"},{"category":"description","text":"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.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2021-20267","url":"https://www.suse.com/security/cve/CVE-2021-20267"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1183173 for CVE-2021-20267","url":"https://bugzilla.suse.com/1183173"}],"title":"SUSE CVE 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9"}]},"vulnerabilities":[{"cve":"CVE-2021-20267","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2021-20267"}],"notes":[{"category":"general","text":"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.","title":"CVE description"}],"product_status":{"known_not_affected":["HPE Helion OpenStack 8:openstack-neutron","HPE Helion OpenStack 8:openstack-neutron-dhcp-agent","HPE Helion OpenStack 8:openstack-neutron-ha-tool","HPE Helion OpenStack 8:openstack-neutron-l3-agent","HPE Helion OpenStack 8:openstack-neutron-linuxbridge-agent","HPE Helion OpenStack 8:openstack-neutron-macvtap-agent","HPE Helion OpenStack 8:openstack-neutron-metadata-agent","HPE Helion OpenStack 8:openstack-neutron-metering-agent","HPE Helion OpenStack 8:openstack-neutron-openvswitch-agent","HPE Helion OpenStack 8:openstack-neutron-server","HPE Helion OpenStack 8:python-neutron","SUSE OpenStack Cloud 8:openstack-neutron","SUSE OpenStack Cloud 8:openstack-neutron-dhcp-agent","SUSE OpenStack Cloud 8:openstack-neutron-ha-tool","SUSE OpenStack Cloud 8:openstack-neutron-l3-agent","SUSE OpenStack Cloud 8:openstack-neutron-linuxbridge-agent","SUSE OpenStack Cloud 8:openstack-neutron-macvtap-agent","SUSE OpenStack Cloud 8:openstack-neutron-metadata-agent","SUSE OpenStack Cloud 8:openstack-neutron-metering-agent","SUSE OpenStack Cloud 8:openstack-neutron-openvswitch-agent","SUSE OpenStack Cloud 8:openstack-neutron-server","SUSE OpenStack Cloud 8:python-neutron","SUSE OpenStack Cloud 9:openstack-neutron","SUSE OpenStack Cloud 9:openstack-neutron-dhcp-agent","SUSE OpenStack Cloud 9:openstack-neutron-ha-tool","SUSE OpenStack Cloud 9:openstack-neutron-l3-agent","SUSE OpenStack Cloud 9:openstack-neutron-linuxbridge-agent","SUSE OpenStack Cloud 9:openstack-neutron-macvtap-agent","SUSE OpenStack Cloud 9:openstack-neutron-metadata-agent","SUSE OpenStack Cloud 9:openstack-neutron-metering-agent","SUSE OpenStack Cloud 9:openstack-neutron-openvswitch-agent","SUSE OpenStack Cloud 9:openstack-neutron-server","SUSE OpenStack Cloud 9:python-neutron","SUSE OpenStack Cloud Crowbar 8:openstack-neutron","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-dhcp-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-ha-tool","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-l3-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-linuxbridge-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-macvtap-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-metadata-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-metering-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-openvswitch-agent","SUSE OpenStack Cloud Crowbar 8:openstack-neutron-server","SUSE OpenStack Cloud Crowbar 8:python-neutron","SUSE OpenStack Cloud Crowbar 9:openstack-neutron","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-dhcp-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-ha-tool","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-l3-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-linuxbridge-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-macvtap-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-metadata-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-metering-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-openvswitch-agent","SUSE OpenStack Cloud Crowbar 9:openstack-neutron-server","SUSE OpenStack Cloud Crowbar 9:python-neutron"]},"references":[{"category":"external","summary":"CVE-2021-20267","url":"https://www.suse.com/security/cve/CVE-2021-20267"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1183173 for CVE-2021-20267","url":"https://bugzilla.suse.com/1183173"}],"threats":[{"category":"impact","date":"2021-03-05T09:52:43Z","details":"important"}],"title":"CVE-2021-20267"}]}