loud 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.
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21 Nov 2024, 04:52
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| References | () https://access.redhat.com/errata/RHBA-2019:0862 - | |
| References | () https://github.com/containernetworking/plugins/pull/269#issuecomment-477683272 - Patch, Third Party Advisory | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCN66VYB3XS76SYH567SO7N3I254JOCT/ - | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGOOWAELGH3F7OXRBPH3HCNZELNLXYTW/ - | |
| References | () https://security.netapp.com/advisory/ntap-20190416-0002/ - Patch, Third Party Advisory |
Published : 2019-04-02 18:30
Updated : 2024-11-21 04:52
NVD link : CVE-2019-9946
Mitre link : CVE-2019-9946
CVE.ORG link : CVE-2019-9946
JSON object : View
Always-Incorrect Control Flow Implementation