CVE-2019-9946 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2019-9946 Interim 1 37 2026-03-05T06:20:50Z current 2021-05-30T14:26:26Z 2026-03-05T06:20:50Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2019-9946 Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a network firewall misconfiguration which affects Kubernetes. The CNI 'portmap' plugin, used to setup HostPorts for CNI, inserts rules at the front of the iptables nat chains; which take precedence over the KUBE- SERVICES chain. Because of this, the HostPort/portmap rule could match incoming traffic even if there were better fitting, more specific service definition rules like NodePorts later in the chain. The issue is fixed in CNI 0.7.5 and Kubernetes 1.11.9, 1.12.7, 1.13.5, and 1.14.0. 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 Magnum Orchestration 7 SUSE CaaS Platform 4.0 SUSE Container as a Service Platform 2.0 SUSE Liberty Linux 8 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Server Business Critical Linux 15 SP1 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Linux Enterprise Module for Public Cloud 12 openSUSE Tumbleweed buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8 buildah-tests-1.9.0-5.module+el8.1.0+4240+893c1ab8 cockpit-podman-4-1.module+el8.1.0+4081+b29780af container-selinux-2.107-2.module+el8.1.0+4081+b29780af containernetworking-plugins-0.8.1-2.module+el8.1.0+4081+b29780af containers-common-0.1.37-5.module+el8.1.0+4240+893c1ab8 fuse-overlayfs-0.4.1-1.module+el8.1.0+4081+b29780af k3s-1.21.3+k3s1-1.2 kubernetes kubernetes-client kubernetes-common kubernetes-kubeadm kubernetes-kubelet oci-systemd-hook-0.1.15-2.git2d0b8a3.module+el8.1.0+4081+b29780af oci-umount-2.3.4-2.git87f9237.module+el8.1.0+4081+b29780af podman-1.4.2-5.module+el8.1.0+4240+893c1ab8 podman-docker-1.4.2-5.module+el8.1.0+4240+893c1ab8 podman-manpages-1.4.2-5.module+el8.1.0+4240+893c1ab8 podman-remote-1.4.2-5.module+el8.1.0+4240+893c1ab8 podman-tests-1.4.2-5.module+el8.1.0+4240+893c1ab8 python-podman-api-1.2.0-0.1.gitd0a45fe.module+el8.1.0+4081+b29780af runc-1.0.0-60.rc8.module+el8.1.0+4081+b29780af skopeo-0.1.37-5.module+el8.1.0+4240+893c1ab8 skopeo-tests-0.1.37-5.module+el8.1.0+4240+893c1ab8 slirp4netns-0.3.0-4.module+el8.1.0+4306+1d917805 toolbox-0.0.4-1.module+el8.1.0+4081+b29780af buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 buildah-tests-1.9.0-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 cockpit-podman-4-1.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 container-selinux-2.107-2.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 containernetworking-plugins-0.8.1-2.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 containers-common-0.1.37-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 fuse-overlayfs-0.4.1-1.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 oci-systemd-hook-0.1.15-2.git2d0b8a3.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 oci-umount-2.3.4-2.git87f9237.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 podman-1.4.2-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 podman-docker-1.4.2-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 podman-manpages-1.4.2-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 podman-remote-1.4.2-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 podman-tests-1.4.2-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 python-podman-api-1.2.0-0.1.gitd0a45fe.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 runc-1.0.0-60.rc8.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 skopeo-0.1.37-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 skopeo-tests-0.1.37-5.module+el8.1.0+4240+893c1ab8 as a component of SUSE Liberty Linux 8 slirp4netns-0.3.0-4.module+el8.1.0+4306+1d917805 as a component of SUSE Liberty Linux 8 toolbox-0.0.4-1.module+el8.1.0+4081+b29780af as a component of SUSE Liberty Linux 8 k3s-1.21.3+k3s1-1.2 as a component of openSUSE Tumbleweed kubernetes as a component of Magnum Orchestration 7 kubernetes-client as a component of SUSE CaaS Platform 4.0 kubernetes-common as a component of SUSE CaaS Platform 4.0 kubernetes-kubeadm as a component of SUSE CaaS Platform 4.0 kubernetes-kubelet as a component of SUSE CaaS Platform 4.0 kubernetes as a component of SUSE CaaS Platform 4.0 kubernetes as a component of SUSE Container as a Service Platform 2.0 kubernetes-client as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kubernetes-common as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kubernetes as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kubernetes-client as a component of SUSE Linux Enterprise Module for Public Cloud 12 kubernetes as a component of SUSE Linux Enterprise Module for Public Cloud 12 kubernetes as a component of SUSE Linux Enterprise Server Business Critical Linux 15 SP1 Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a network firewall misconfiguration which affects Kubernetes. The CNI 'portmap' plugin, used to setup HostPorts for CNI, inserts rules at the front of the iptables nat chains; which take precedence over the KUBE- SERVICES chain. Because of this, the HostPort/portmap rule could match incoming traffic even if there were better fitting, more specific service definition rules like NodePorts later in the chain. The issue is fixed in CNI 0.7.5 and Kubernetes 1.11.9, 1.12.7, 1.13.5, and 1.14.0. CVE-2019-9946 SUSE Liberty Linux 8:buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:buildah-tests-1.9.0-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:cockpit-podman-4-1.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:container-selinux-2.107-2.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:containernetworking-plugins-0.8.1-2.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:containers-common-0.1.37-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:fuse-overlayfs-0.4.1-1.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:oci-systemd-hook-0.1.15-2.git2d0b8a3.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:oci-umount-2.3.4-2.git87f9237.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:podman-1.4.2-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:podman-docker-1.4.2-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:podman-manpages-1.4.2-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:podman-remote-1.4.2-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:podman-tests-1.4.2-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:python-podman-api-1.2.0-0.1.gitd0a45fe.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:runc-1.0.0-60.rc8.module+el8.1.0+4081+b29780af SUSE Liberty Linux 8:skopeo-0.1.37-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:skopeo-tests-0.1.37-5.module+el8.1.0+4240+893c1ab8 SUSE Liberty Linux 8:slirp4netns-0.3.0-4.module+el8.1.0+4306+1d917805 SUSE Liberty Linux 8:toolbox-0.0.4-1.module+el8.1.0+4081+b29780af openSUSE Tumbleweed:k3s-1.21.3+k3s1-1.2 Magnum Orchestration 7:kubernetes SUSE CaaS Platform 4.0:kubernetes SUSE CaaS Platform 4.0:kubernetes-client SUSE CaaS Platform 4.0:kubernetes-common SUSE CaaS Platform 4.0:kubernetes-kubeadm SUSE CaaS Platform 4.0:kubernetes-kubelet SUSE Container as a Service Platform 2.0:kubernetes SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS:kubernetes SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS:kubernetes-client SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS:kubernetes-common SUSE Linux Enterprise Module for Public Cloud 12:kubernetes SUSE Linux Enterprise Module for Public Cloud 12:kubernetes-client SUSE Linux Enterprise Server Business Critical Linux 15 SP1:kubernetes moderate 5 AV:N/AC:L/Au:N/C:N/I:P/A:N 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L