Описание
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.
Отчет
While this issue affects the CNI portmap plugin that is bundled with Kubernetes, it does not affect OpenShift Container Platform as the vulnerable plugin is not included. It also does not affect the version of Kubernetes (embedded in heketi) shipped with Red Hat Gluster Storage 3 as it does not contain the vulnerable code.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 8 | container-tools:1.0/containernetworking-plugins | Out of support scope | ||
| Red Hat OpenShift Container Platform 3.10 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.11 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.4 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.5 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.6 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.7 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 3.9 | atomic-openshift | Not affected | ||
| Red Hat OpenShift Container Platform 4 | openshift | Not affected | ||
| Red Hat Storage 3 | heketi | Not affected |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
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.
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.
Cloud Native Computing Foundation (CNCF) CNI (Container Networking Int ...
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.
ELSA-2019-4593: kubernetes kubeadm-upgrade kubeadm-ha-setup security update (IMPORTANT)
EPSS
6.5 Medium
CVSS3