CVE-2019-11247
Description
The Kubernetes kube-apiserver mistakenly allows access to a cluster-scoped custom resource if the request is made as if the resource were namespaced. Authorizations for the resource accessed in this manner are enforced using roles and role bindings within the namespace, meaning that a user with access only to a resource in one namespace could create, view update or delete the cluster-scoped resource (according to their namespace role privileges). Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.17.4-1 |
| sid | Fixed | 1.17.4-1 |
| forky | Fixed | 1.17.4-1 |
| bullseye | Fixed | 1.17.4-1 |
| bookworm | Fixed | 1.17.4-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | k8s.io/apiextensions-apiserver | >=0.7.0,<0.13.9 | 0.13.9 |
| Go | k8s.io/apiextensions-apiserver | >=0.14.0,<0.14.5 | 0.14.5 |
| Go | k8s.io/apiextensions-apiserver | >=0.15.0,<0.15.2 | 0.15.2 |
References
- https://www.suse.com/security/cve/CVE-2019-11247.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-11247
- https://github.com/kubernetes/kubernetes/issues/80983
- https://github.com/kubernetes/kubernetes/pull/80750
- https://github.com/kubernetes/kubernetes/pull/80850
- https://github.com/kubernetes/kubernetes/pull/80851
- https://github.com/kubernetes/kubernetes/pull/80852
- https://github.com/kubernetes/apiextensions-apiserver/commit/b9b7d2b3f32f8edbeb47b8726710eeb868bce196
- https://access.redhat.com/errata/RHBA-2019:2816
- https://access.redhat.com/errata/RHBA-2019:2824
- https://access.redhat.com/errata/RHSA-2019:2690
- https://access.redhat.com/errata/RHSA-2019:2769
- https://github.com/kubernetes/apiextensions-apiserver
- https://groups.google.com/d/msg/kubernetes-security-announce/vUtEcSEY6SM/v2ZZxsmtFQAJ
- https://security.netapp.com/advisory/ntap-20190919-0003
- https://security-tracker.debian.org/tracker/CVE-2019-11247
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.