CVE-2022-31214
firejail - security update
7.8
HIGH
CVSS 3.1
EPSS 0.38%
描述
A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.
如何修補 CVE-2022-31214
要修補 CVE-2022-31214,請將受影響套件升級到下列已修補版本。
- —升級至 0.9.64.4-2+deb11u1 或更新版本
- —升級至 0.9.58.2-2+deb9u1 或更新版本
- —升級至 0.9.58.2-2+deb10u3 或更新版本
CVE-2022-31214 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, < 0.9.64.4-2+deb11u1
- from 0, < 0.9.58.2-2+deb9u1
- from 0, < 0.9.58.2-2+deb10u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |