VDB
ALPINE-CVE-2021-28706
ALPINE-CVE-2021-28706
PUBLISHED
CVSS 8.600000381469727 HIGH
guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.
Risk Scores
CVSS 3.1
8.600000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.12 | xen | 4.4.1-r4, 4.13.3-r2, 4.9.1-r0 |
| Alpine:v3.14 | xen | 4.0.1-r2, 4.0.1-r1, 0 |
| Alpine:v3.11 | xen | 4.3.0-r6, 4.0.1-r0, 4.0.1-r1 |
| Alpine:v3.13 | xen | 4.0.1-r0, 3.2, 4.8.1-r1 |
| Alpine:v3.15 | xen | 4.1.1-r0, 4.1.0-r2, 4.1.0-r0 |
Timeline
- Nov 24, 2021 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch