CVE-2020-27779
7.5
HIGH
CVSS 3.1
EPSS 0.39%
描述
A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
如何修補 CVE-2020-27779
要修補 CVE-2020-27779,請將受影響套件升級到下列已修補版本。
- —升級至 2.06-r0 或更新版本
- —升級至 2.04-16 或更新版本
CVE-2020-27779 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(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 | HIGH7.5 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |