CVE-2020-27821
6.0
MEDIUM
CVSS 3.1
EPSS 0.04%
描述
A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.
如何修補 CVE-2020-27821
要修補 CVE-2020-27821,請將受影響套件升級到下列已修補版本。
- —升級至 1:5.2+dfsg-3 或更新版本
CVE-2020-27821 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1:5.2+dfsg-3
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:C/C:N/I:N/A:H |