kubelet-started container uid changes to root after first restart or if image is already pulled to the node
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass, Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-264 and CWE-266.
Summary
In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit runAsUser attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node. If the pod specified mustRunAsNonRoot: true, the kubelet will refuse to start the container as root. If the pod did not specify mustRunAsNonRoot: true, the kubelet will run the container as uid 0.
Why it matters now
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 |
|---|---|---|---|---|---|
| Kubernetes | Kubernetes | v1.13.6; v1.14.2 | — | No fix listed | CNA |
| — | k8s.io/kubernetes/cmd/kubelet (Go) | 1.14.0 to before 1.14.3 | 1.14.3 | Patch available | GHSA-r76g-g87f-vw8f |
| — | k8s.io/kubernetes/cmd/kubelet (Go) | 1.13.0 to before 1.13.7 | 1.13.7 | Patch available | GHSA-r76g-g87f-vw8f |
- Kubernetes VendorKubernetes Affected v1.13.6; v1.14.2 Fixed in — No fix listed CNA
- k8s.io/kubernetes/cmd/kubelet (Go) Vendor— Affected 1.14.0 to before 1.14.3 Fixed in 1.14.3 Patch available GHSA-r76g-g87f-vw8f
- k8s.io/kubernetes/cmd/kubelet (Go) Vendor— Affected 1.13.0 to before 1.13.7 Fixed in 1.13.7 Patch available GHSA-r76g-g87f-vw8f
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:kubernetes:1.13.6:*:*:*:*:*:*:* | 1.13.6 | Vulnerable | Kubernetes |
| cpe:2.3:a:kubernetes:kubernetes:1.14.2:*:*:*:*:*:*:* | 1.14.2 | Vulnerable | Kubernetes |
- cpe:2.3:a:kubernetes:kubernetes:1.13.6:*:*:*:*:*:*:* Versions 1.13.6 Vulnerable ·Kubernetes
- cpe:2.3:a:kubernetes:kubernetes:1.14.2:*:*:*:*:*:*:* Versions 1.14.2 Vulnerable ·Kubernetes
Remediation
- Fix · GHSA-r76g-g87f-vw8f k8s.io/kubernetes/cmd/kubelet (Go) Fixed in 1.14.3 Advisory →
- Fix · GHSA-r76g-g87f-vw8f k8s.io/kubernetes/cmd/kubelet (Go) Fixed in 1.13.7 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat OpenShift Container Platform 3.10
- Red Hat OpenShift Container Platform 3.11
- 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-2019-11245
- 2026-10-03 Alias added: GHSA-r76g-g87f-vw8f
References
Advisory 2
Other 7
- https://security.netapp.com/advisory/ntap-20190919-0003/
- https://github.com/kubernetes/kubernetes/pull/76665
- https://github.com/kubernetes/kubernetes/pull/76665/commits/26e3c8674e66f0d10170d34f5445f0aed207387f
- https://bugzilla.redhat.com/show_bug.cgi?id=1715726
- https://github.com/kubernetes/kubernetes
- https://pkg.go.dev/vuln/GO-2024-2780
- https://security.netapp.com/advisory/ntap-20190919-0003
More Kubernetes vulnerabilities
- TI-2018-16130 Improper privilege management in Kubernetes CVSS 3.0CRITICAL 9.8
- TI-2019-08418 Kubernetes kubelet exposes /debug/pprof info on healthz port CVSS 3.1HIGH 8.2
- TI-2023-05086 Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-03433 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-02285 Bypass of seccomp profile enforcement CVSS 3.1MEDIUM 5.5
- TI-2017-14755 Link following in Kubernetes CVSS 3.0CRITICAL 9.6
Sources
- CVE-2019-11245 · CVE Program
- CVE-2019-11245 · NVD
- FIRST EPSS
- GHSA-r76g-g87f-vw8f · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11245 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences