VDB
ALPINE-CVE-2022-23034
ALPINE-CVE-2022-23034
PUBLISHED
CVSS 5.5 MEDIUM
A PV guest could DoS Xen while unmapping a grant To address XSA-380, reference counting was introduced for grant mappings for the case where a PV guest would have the IOMMU enabled. PV guests can request two forms of mappings. When both are in use for any individual mapping, unmapping of such a mapping can be requested in two steps. The reference count for such a mapping would then mistakenly be decremented twice. Underflow of the counters gets detected, resulting in the triggering of a hypervisor bug check.
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.18 | xen | 4.3.0-r7, 4.1.2-r9, 4.1.3-r0 |
| Alpine:v3.17 | xen | 4.9.1-r1, 4.9.1-r2, 3.2.0 |
| Alpine:v3.22 | xen | 4.13.1-r4, 4.0.1-r3, 4.0.1-r2 |
| Alpine:v3.24 | xen | 3.2.0 |
| Alpine:v3.20 | xen | 4.1.2-r11, 4.1.1-r2, 4.1.1-r0 |
| Alpine:v3.15 | xen | 4.0.1-r1, 4.0.1-r0, 4.0.1-r2 |
| Alpine:v3.19 | xen | 4.8.1-r1, 4.0.1-r3, 0 |
| Alpine:v3.16 | xen | 4.1.2-r10, 4.1.2-r11, 4.1.2-r12 |
| Alpine:v3.21 | xen | 4.2.2-r9, 0, 4.0.1-r0 |
| Alpine:v3.14 | xen | 3.2.0, 4.1.0-r1, 4.1.1-r0 |
| Alpine:v3.13 | xen | 4.13.0-r2, 4.2.1-r7, 4.4.1-r4 |
| Alpine:v3.23 | xen | 4.2.2-r8, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.12 | xen | 4.7.1-r0, 4.4.1-r0, 4.7.0-r0 |
Timeline
- Jan 25, 2022 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch