CVE-2020-14310
6.0
MEDIUM
CVSS 3.1
EPSS 0.48%
描述
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
如何修補 CVE-2020-14310
要修補 CVE-2020-14310,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
CVE-2020-14310 正在被利用嗎?
低 — EPSS 為 0.5%,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, < 2.04-9
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |