CVE-2020-10713
grub2 - security update
描述
A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
如何修補 CVE-2020-10713
要修補 CVE-2020-10713,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 2.04-9 或更新版本
- —升級至 2.02+dfsg1-20+deb10u1 或更新版本
CVE-2020-10713 正在被利用嗎?
低 — EPSS 為 1.1%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.06-r0
- from 0, < 2.04-9
- from 0, < 2.02+dfsg1-20+deb10u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |