CVE-2021-38598 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2021-38598 Interim 1 23 2025-11-05T02:06:36Z current 2021-08-20T00:53:37Z 2025-11-05T02:06:36Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2021-38598 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 carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings HPE Helion OpenStack 8 SUSE OpenStack Cloud 7 SUSE OpenStack Cloud 8 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 8 SUSE OpenStack Cloud Crowbar 9 openstack-neutron openstack-neutron-dhcp-agent openstack-neutron-doc openstack-neutron-ha-tool openstack-neutron-l3-agent openstack-neutron-linuxbridge-agent openstack-neutron-macvtap-agent openstack-neutron-metadata-agent openstack-neutron-metering-agent openstack-neutron-openvswitch-agent openstack-neutron-server python-neutron openstack-neutron as a component of HPE Helion OpenStack 8 openstack-neutron-dhcp-agent as a component of HPE Helion OpenStack 8 openstack-neutron-ha-tool as a component of HPE Helion OpenStack 8 openstack-neutron-l3-agent as a component of HPE Helion OpenStack 8 openstack-neutron-linuxbridge-agent as a component of HPE Helion OpenStack 8 openstack-neutron-macvtap-agent as a component of HPE Helion OpenStack 8 openstack-neutron-metadata-agent as a component of HPE Helion OpenStack 8 openstack-neutron-metering-agent as a component of HPE Helion OpenStack 8 openstack-neutron-openvswitch-agent as a component of HPE Helion OpenStack 8 openstack-neutron-server as a component of HPE Helion OpenStack 8 python-neutron as a component of HPE Helion OpenStack 8 openstack-neutron-doc as a component of HPE Helion OpenStack 8 openstack-neutron as a component of SUSE OpenStack Cloud 7 openstack-neutron-dhcp-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-ha-tool as a component of SUSE OpenStack Cloud 7 openstack-neutron-l3-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-linuxbridge-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-macvtap-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-metadata-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-metering-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-openvswitch-agent as a component of SUSE OpenStack Cloud 7 openstack-neutron-server as a component of SUSE OpenStack Cloud 7 python-neutron as a component of SUSE OpenStack Cloud 7 openstack-neutron-doc as a component of SUSE OpenStack Cloud 7 openstack-neutron as a component of SUSE OpenStack Cloud 8 openstack-neutron-dhcp-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-ha-tool as a component of SUSE OpenStack Cloud 8 openstack-neutron-l3-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-linuxbridge-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-macvtap-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-metadata-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-metering-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-openvswitch-agent as a component of SUSE OpenStack Cloud 8 openstack-neutron-server as a component of SUSE OpenStack Cloud 8 python-neutron as a component of SUSE OpenStack Cloud 8 openstack-neutron-doc as a component of SUSE OpenStack Cloud 8 openstack-neutron as a component of SUSE OpenStack Cloud 9 openstack-neutron-dhcp-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-ha-tool as a component of SUSE OpenStack Cloud 9 openstack-neutron-l3-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-linuxbridge-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-macvtap-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-metadata-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-metering-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-openvswitch-agent as a component of SUSE OpenStack Cloud 9 openstack-neutron-server as a component of SUSE OpenStack Cloud 9 python-neutron as a component of SUSE OpenStack Cloud 9 openstack-neutron-doc as a component of SUSE OpenStack Cloud 9 openstack-neutron as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-dhcp-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-ha-tool as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-l3-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-linuxbridge-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-macvtap-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-metadata-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-metering-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-openvswitch-agent as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-server as a component of SUSE OpenStack Cloud Crowbar 8 python-neutron as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron-doc as a component of SUSE OpenStack Cloud Crowbar 8 openstack-neutron as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-dhcp-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-ha-tool as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-l3-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-linuxbridge-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-macvtap-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-metadata-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-metering-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-openvswitch-agent as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-server as a component of SUSE OpenStack Cloud Crowbar 9 python-neutron as a component of SUSE OpenStack Cloud Crowbar 9 openstack-neutron-doc as a component of SUSE OpenStack Cloud Crowbar 9 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 carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations. CVE-2021-38598 HPE Helion OpenStack 8:openstack-neutron HPE Helion OpenStack 8:openstack-neutron-dhcp-agent HPE Helion OpenStack 8:openstack-neutron-doc 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 7:openstack-neutron SUSE OpenStack Cloud 7:openstack-neutron-dhcp-agent SUSE OpenStack Cloud 7:openstack-neutron-doc SUSE OpenStack Cloud 7:openstack-neutron-ha-tool SUSE OpenStack Cloud 7:openstack-neutron-l3-agent SUSE OpenStack Cloud 7:openstack-neutron-linuxbridge-agent SUSE OpenStack Cloud 7:openstack-neutron-macvtap-agent SUSE OpenStack Cloud 7:openstack-neutron-metadata-agent SUSE OpenStack Cloud 7:openstack-neutron-metering-agent SUSE OpenStack Cloud 7:openstack-neutron-openvswitch-agent SUSE OpenStack Cloud 7:openstack-neutron-server SUSE OpenStack Cloud 7:python-neutron SUSE OpenStack Cloud 8:openstack-neutron SUSE OpenStack Cloud 8:openstack-neutron-dhcp-agent SUSE OpenStack Cloud 8:openstack-neutron-doc 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-doc 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-doc 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-doc 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 moderate 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N