VDB
ALPINE-CVE-2022-33745
ALPINE-CVE-2022-33745
PUBLISHED
CVSS 8.800000190734863 HIGH
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.
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.13 | xen | 4.13.0-r0, 4.7.0-r2, 4.7.0-r1 |
| Alpine:v3.15 | xen | 4.15.0-r0, 4.14.1-r4, 4.14.1-r3 |
| Alpine:v3.14 | xen | 4.2.0-r4, 0, 4.9.1-r3 |
| Alpine:v3.22 | xen | 0, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.21 | xen | 4.16.1-r4, 0, 4.0.1-r0 |
| Alpine:v3.24 | xen | 0 |
| Alpine:v3.19 | xen | 0, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.18 | xen | 4.9.0-r6, 4.9.0-r5, 4.9.0-r4 |
| Alpine:v3.20 | xen | 4.8.1-r3, 4.2.2-r4, 4.2.2-r3 |
| Alpine:v3.23 | xen | 4.9.1-r1, 4.2.2-r6, 4.2.2-r7 |
| Alpine:v3.17 | xen | 4.2.1-r9, 4.2.1-r8, 4.2.1-r7 |
Timeline
- Jul 26, 2022 CVE Published
- Apr 30, 2026 Distribution Patch
- Jun 15, 2026 CVE Updated