中危 kubernetes container_storage_interface_snapshotter 空指针解引用
CVE编号
CVE-2020-8569利用情况
暂无补丁情况
官方补丁披露时间
2021-01-22漏洞描述
Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://github.com/kubernetes-csi/external-snapshotter/issues/380 | |
| https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | kubernetes | container_storage_interface_snapshotter | * | From (including) 2.1.0 | Up to (excluding) 2.1.3 | ||||
| 运行在以下环境 | |||||||||
| 应用 | kubernetes | container_storage_interface_snapshotter | * | From (including) 3.0.0 | Up to (excluding) 3.0.2 | ||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 普通权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-476 | 空指针解引用 |
Exp相关链接
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