x/vulndb: potential Go vuln in github.com/containernetworking/plugins: CVE-2019-9946 #2261
Labels
excluded: LEGACY_FALSE_POSITIVE
(DO NOT USE) Vulnerability marked as false positive before we introduced the triage process
CVE-2019-9946 references github.com/containernetworking/plugins, which may be a Go module.
Description:
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:
Cross references:
See doc/triage.md for instructions on how to triage this report.
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