CVE-2026-35358
cp: -R reads device nodes as streams, destroying device semantics
4.4
MEDIUM
CVSS 3.1
EPSS 0.18%
描述
The cp utility in uutils coreutils, when performing recursive copies (-R), incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are destroyed (e.g., /dev/null becomes a regular file). This behavior can lead to runtime denial of service through disk exhaustion or process hangs when reading from unbounded device nodes.
如何修補 CVE-2026-35358
要修補 CVE-2026-35358,請將受影響套件升級到下列已修補版本。
- —升級至 0.7.0 或更新版本
- —升級至 0.7.0 或更新版本
CVE-2026-35358 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 0.7.0
- from 0, < 0.7.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |