National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9946 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  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

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Hyperlink Resource
https://access.redhat.com/errata/RHBA-2019:0862
https://github.com/containernetworking/plugins/pull/269#issuecomment-477683272 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCN66VYB3XS76SYH567SO7N3I254JOCT/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SGOOWAELGH3F7OXRBPH3HCNZELNLXYTW/
https://security.netapp.com/advisory/ntap-20190416-0002/ Patch Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-254 7PK - Security Features NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cncf:portmap:*:*:*:*:*:container_networking_interface:*:*
     Show Matching CPE(s)
Up to (excluding)
0.7.5
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
1.11.9
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.12.0
Up to (excluding)
1.12.7
 cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
1.13.0
Up to (excluding)
1.13.5
 cpe:2.3:a:kubernetes:kubernetes:1.13.6:beta0:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha0:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta0:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:kubernetes:kubernetes:1.14.0:rc1:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:netapp:cloud_insights:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9946
NVD Published Date:
04/02/2019
NVD Last Modified:
06/14/2019