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Always-Incorrect Control Flow Implementation The advisory has been revoked - it doesn't affect any version of package golang-github-containernetworking-plugins  (opens in a new tab)

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EPSS
3.16% (88th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-GOLANGGITHUBCONTAINERNETWORKINGPLUGINS-674516
  • published24 Jul 2019
  • disclosed2 Apr 2019
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Introduced: 2 Apr 2019

CVE-2019-9946  (opens in a new tab)
CWE-670  (opens in a new tab)

Amendment

The Debian security team deemed this advisory irrelevant for Debian:unstable.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-github-containernetworking-plugins package and not the golang-github-containernetworking-plugins package as distributed by Debian.

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.

References