CVE-2021-20225
6.7
MEDIUM
CVSS 3.1
EPSS 1.0%
描述
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
如何修補 CVE-2021-20225
要修補 CVE-2021-20225,請將受影響套件升級到下列已修補版本。
- Alpine/grub—升級至 2.06-r0 或更新版本
- —升級至 2.04-16 或更新版本
CVE-2021-20225 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(2)
- from 0, < 2.06-r0
- from 0, < 2.04-16
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |