{"id":"ALPINE-CVE-2019-9946","details":"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.","modified":"2026-11-03T06:32:23.160617446Z","published":"2019-04-02T18:30:26.583Z","upstream":["CVE-2019-9946"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2019-9946"}],"affected":[{"package":{"name":"containerd","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-9946.json"}},{"package":{"name":"containerd","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/containerd?arch=source"},"ranges":[{"type":"ECOSYSTEM","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