GHSA-35c7-w35f-xwgh
Kube-proxy may unintentionally forward traffic
At a glance
- Published
- Updated
- CVE
- CVE-2021-25736
- Aliases
- GO-2023-2159
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Description
Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (`spec.ports[*].port`) as a LoadBalancer Service when the LoadBalancer controller does not set the `status.loadBalancer.ingress[].ip` field. Clusters where the LoadBalancer controller sets the `status.loadBalancer.ingress[].ip` field are unaffected.
Affected packages
| Package | Versions |
|---|---|
| Go · k8s.io/kubernetes | introduced 0, fixed 1.21.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-25736 ADVISORY
- https://github.com/kubernetes/kubernetes/pull/99958 WEB
- https://github.com/kubernetes/kubernetes/commit/b014610de3e5cf1bb0f7844b5758d29fc18b75e6 WEB
- https://github.com/kubernetes/kubernetes PACKAGE
- https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ WEB
- https://security.netapp.com/advisory/ntap-20231221-0003 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |