CVE-2022-47952
lxc - security update
3.3
LOW
CVSS 3.1
EPSS 0.70%
描述
lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exists, even within a protected directory tree, because "Failed to open" often indicates that a file does not exist, whereas "does not refer to a network namespace path" often indicates that a file exists. NOTE: this is different from CVE-2018-6556 because the CVE-2018-6556 fix design was based on the premise that "we will report back to the user that the open() failed but the user has no way of knowing why it failed"; however, in many realistic cases, there are no plausible reasons for failing except that the file does not exist.
如何修補 CVE-2022-47952
要修補 CVE-2022-47952,請將受影響套件升級到下列已修補版本。
- —升級至 4.0.10-r2 或更新版本
- —升級至 1:4.0.6-2+deb11u2 或更新版本
- —升級至 1:3.1.0+really3.0.3-8+deb10u1 或更新版本
CVE-2022-47952 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 4.0.10-r2
- from 0, < 1:4.0.6-2+deb11u2
- from 0, < 1:3.1.0+really3.0.3-8+deb10u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |