VDB
ALPINE-CVE-2022-26363
ALPINE-CVE-2022-26363
PUBLISHED
CVSS 6.699999809265137 MEDIUM
x86 pv: Insufficient care with non-coherent mappings T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, Xen's safety logic doesn't account for CPU-induced cache non-coherency; cases where the CPU can cause the content of the cache to be different to the content in main memory. In such cases, Xen's safety logic can incorrectly conclude that the contents of a page is safe.
Risk Scores
CVSS v3.1
6.699999809265137
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.22 | xen | 4.9.1-r3, 4.14.0-r0, 0 |
| Alpine:v3.18 | xen | 4.4.1-r2, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.16 | xen | 4.12.0-r1, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.17 | xen | 4.3.0-r8, 4.3.0-r7, 4.3.0-r6 |
| Alpine:v3.20 | xen | 4.2.1-r7, 4.3.0-r7, 4.3.0-r6 |
| Alpine:v3.14 | xen | 4.3.0-r7, 4.3.0-r6, 4.3.0-r5 |
| Alpine:v3.19 | xen | 4.9.1-r2, 4.1.2-r7, 4.0.1-r0 |
| Alpine:v3.15 | xen | 4.14.1-r4, 4.9.1-r2, 4.9.1-r1 |
| Alpine:v3.13 | xen | 4.3.0-r0, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.21 | xen | 4.2.2-r4, 4.7.2-r0, 4.8.1-r0 |
| Alpine:v3.23 | xen | 0, 4.7.0-r3, 4.7.0-r4 |
Timeline
- Jun 9, 2022 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch