CVE-2022-33745
HIGH8.8EPSS 0.08%xen - security update
發布日:2022/7/26修改日:2025/12/3
也稱為:ALPINE-CVE-2022-33745
描述
insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.
受影響套件(3)
- Alpine/xenfrom 0, < 4.14.5-r5
- Debian/xenfrom 0, < 4.14.5+86-g1c354767d5-1
- Debian/xenfrom 0, < 4.14.5+86-g1c354767d5-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |