CVE-2018-5244
6.5
MEDIUM
CVSS 3.1
EPSS 0.37%
描述
In Xen 4.10, new infrastructure was introduced as part of an overhaul to how MSR emulation happens for guests. Unfortunately, one tracking structure isn't freed when a vcpu is destroyed. This allows guest OS administrators to cause a denial of service (host OS memory consumption) by rebooting many times.
如何修補 CVE-2018-5244
要修補 CVE-2018-5244,請將受影響套件升級到下列已修補版本。
- Alpine/xen—升級至 4.10.0-r1 或更新版本
CVE-2018-5244 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(1)
- >= 4.10.0, < 4.10.0-r1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |