CVE-2021-20291
Denial of service via deadlock in github.com/containers/storage
6.5
MEDIUM
CVSS 3.1
EPSS 1.0%
描述
A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).
如何修補 CVE-2021-20291
要修補 CVE-2021-20291,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 1.28.1 或更新版本
- —升級至 1.28.1 或更新版本
CVE-2021-20291 正在被利用嗎?
低 — EPSS 為 1.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0
- from 0, < 1.28.1
- from 0, < 1.28.1
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:N/UI:R/S:U/C:N/I:N/A:H |