Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a…
Priority LOW 39CWE-670Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.03159 88th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cncf:portmap:*:*:*:*:*:container_networking_interface:*:* | before 0.7.5 | Vulnerable | Cncf |
| cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* | before 1.11.9; 1.12.0 to before 1.12.7; 1.13.0 to before 1.13.5 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.13.6:beta0:*:*:*:*:*:* | 1.13.6 beta0 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha0:*:*:*:*:*:* | 1.14.0 alpha0 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha1:*:*:*:*:*:* | 1.14.0 alpha1 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha2:*:*:*:*:*:* | 1.14.0 alpha2 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha3:*:*:*:*:*:* | 1.14.0 alpha3 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta0:*:*:*:*:*:* | 1.14.0 beta0 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta1:*:*:*:*:*:* | 1.14.0 beta1 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta2:*:*:*:*:*:* | 1.14.0 beta2 | Vulnerable | Kubernetes |
- cpe:2.3:a:cncf:portmap:*:*:*:*:*:container_networking_interface:*:* Versions before 0.7.5 Vulnerable ·Cncf
- cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* Versions before 1.11.9; 1.12.0 to before 1.12.7; 1.13.0 to before 1.13.5 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.13.6:beta0:*:*:*:*:*:* Versions 1.13.6 beta0 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha0:*:*:*:*:*:* Versions 1.14.0 alpha0 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha1:*:*:*:*:*:* Versions 1.14.0 alpha1 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha2:*:*:*:*:*:* Versions 1.14.0 alpha2 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:alpha3:*:*:*:*:*:* Versions 1.14.0 alpha3 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta0:*:*:*:*:*:* Versions 1.14.0 beta0 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta1:*:*:*:*:*:* Versions 1.14.0 beta1 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:beta2:*:*:*:*:*:* Versions 1.14.0 beta2 Vulnerable ·Kubernetes
Show 2 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:kubernetes:1.14.0:rc1:*:*:*:*:*:* | 1.14.0 rc1 | Vulnerable | Kubernetes |
| cpe:2.3:a:netapp:cloud_insights:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:kubernetes:kubernetes:1.14.0:rc1:*:*:*:*:*:* Versions 1.14.0 rc1 Vulnerable ·Kubernetes
- cpe:2.3:a:netapp:cloud_insights:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
Red Hat 1 advisory
- RHSA-2019:3403 Released 2019-11-05 · Red Hat rating Importantcontainer-tools:rhel8 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8.aarch64::container-tools:rhel8, buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8.ppc64le::container-tools:rhel8, buildah-1.9.0-5.module+el8.1.0+4240+893c1ab8.s390x::container-tools:rhel8 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 Extras | Fixed | — |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2019:3403 |
Not affected: 9 products
- Red Hat OpenShift Container Platform 3.10
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 3.4
- Red Hat OpenShift Container Platform 3.5
- Red Hat OpenShift Container Platform 3.6
- Red Hat OpenShift Container Platform 3.7
- Red Hat OpenShift Container Platform 3.9
- Red Hat OpenShift Container Platform 4
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9946
- 2026-10-03 Alias added: GHSA-6g96-g4m6-hw69
References
Sources
- CVE-2019-9946 · CVE Program
- CVE-2019-9946 · NVD
- FIRST EPSS
- GHSA-6g96-g4m6-hw69 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-9946 · Red Hat security data · CC BY 4.0
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