CVE-2022-42335
HIGH7.8EPSS 0.09%發布日:2023/4/25修改日:2025/12/3
也稱為:ALPINE-CVE-2022-42335
描述
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
受影響套件(2)
- Alpine/xenfrom 0, < 4.17.0-r5
- Debian/xenfrom 0, < 4.17.1+2-gb773c48e36-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |