CVE-2022-29162
Default inheritable capabilities for linux container should be empty in github.com/opencontainers/runc
描述
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.
如何修補 CVE-2022-29162
要修補 CVE-2022-29162,請將受影響套件升級到下列已修補版本。
- —升級至 1.0.0~rc93+ds1-5+deb11u2 或更新版本
- —升級至 1.1.2 或更新版本
- —升級至 1.1.2 或更新版本
CVE-2022-29162 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 1.0.0~rc93+ds1-5+deb11u2
- from 0, < 1.1.2
- from 0, < 1.1.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |