CVE-2022-42327
7.1
HIGH
CVSS 3.1
EPSS 0.23%
描述
x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.
如何修補 CVE-2022-42327
要修補 CVE-2022-42327,請將受影響套件升級到下列已修補版本。
- Alpine/xen—升級至 4.15.4-r0 或更新版本
- —升級至 4.16.2+90-g0d39a6d1ae-1 或更新版本
CVE-2022-42327 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, < 4.15.4-r0
- from 0, < 4.16.2+90-g0d39a6d1ae-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |