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VULNERABILITIES

CVE-2019-9946 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHBA-2019:0862 CVE
https://github.com/containernetworking/plugins/pull/269#issuecomment-477683272 CVEPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCN66VYB3XS76SYH567SO7N3I254JOCT/ CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGOOWAELGH3F7OXRBPH3HCNZELNLXYTW/ CVE
https://security.netapp.com/advisory/ntap-20190416-0002/ CVEPatchThird Party Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-670Always-Incorrect Control Flow Implementation[email protected]

Affected Products

ProductVersions
cncf portmap
< 0.7.5

CPE

  • cpe:2.3:a:cncf:portmap:*:*:*:*:*:container_networking_interface:*:*

Remediation

  • No remediation found in references.
kubernetes kubernetes
< 1.11.9
>= 1.12.0, < 1.12.7
>= 1.13.0, < 1.13.5
1.13.6 beta0
1.14.0 alpha0

CPE

  • cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.13.6:beta0:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha0:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha1:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha2:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha3:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta0:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:kubernetes:kubernetes:1.14.0:rc1:*:*:*:*:*:*

Remediation

  • No remediation found in references.
netapp cloud insights
All versions

CPE

  • cpe:2.3:a:netapp:cloud_insights:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-9946
NVD Published Date:
Apr 2, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-9946 Details - Not Deferred