CVE-2021-25737
Low
Description
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.
SeverityLow
CVSS2.7
Exploit probability—
ProductKubernetes
PublishedSep 6, 2021
First seenSep 6, 2021
Weakness typeCWE-184CWE-184
How to fix
Update
- kubernetes kubernetes1.18.19, 1.19.10, 1.20.7 or later
- k8s.io/kubernetes1.18.19, 1.19.11, 1.20.7, 1.21.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| kubernetes kubernetes | 1.16.0 ≤ v < 1.18.19, 1.19.0 ≤ v < 1.19.10, 1.20.0 ≤ v < 1.20.7, 1.21.0 | 1.18.19, 1.19.10, 1.20.7 |
| k8s.io/kubernetesGo | 1.16.0 ≤ v < 1.18.19, 1.19.0 ≤ v < 1.19.11, 1.20.0 ≤ v < 1.20.7, 1.21.0 ≤ v < 1.21.1 | 1.18.19, 1.19.11, 1.20.7, 1.21.1 |
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