CVE-2021-25735
Access Restriction Bypass in kube-apiserver in k8s.io/kubernetes
6.5
MEDIUM
CVSS 3.1
EPSS 5.5%
描述
A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields.
如何修補 CVE-2021-25735
要修補 CVE-2021-25735,請將受影響套件升級到下列已修補版本。
- —升級至 1.20.5+really1.20.2-1 或更新版本
- —升級至 1.20.6 或更新版本
- —升級至 1.18.18 或更新版本
CVE-2021-25735 正在被利用嗎?
中等 — EPSS 為 5.5%,可持續追蹤但非最高優先。
受影響套件(3)
- from 0, < 1.20.5+really1.20.2-1
- >= 1.20.0, < 1.20.6
- from 0, < 1.18.18, >= 1.19.0, < 1.19.10, >= 1.20.0, < 1.20.6
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |