VDB
ALPINE-CVE-2020-29570
ALPINE-CVE-2020-29570
PUBLISHED
CVSS 6.199999809265137 MEDIUM
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
Risk Scores
CVSS v3.1
6.199999809265137
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.13 | xen | 4.1.2-r9, 4.11.1-r1, 4.12.0-r1 |
| Alpine:v3.12 | xen | 4.12.0-r0, 4.11.1-r1, 4.11.1-r0 |
| Alpine:v3.23 | xen | 4.7.1-r5, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.15 | xen | 4.7.0-r3, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.21 | xen | 4.4.1-r3, 4.4.1-r1, 4.4.1-r0 |
| Alpine:v3.16 | xen | 4.13.0-r2, 0, 4.0.1-r0 |
| Alpine:v3.18 | xen | 4.4.1-r3, 4.7.0-r4, 4.7.0-r5 |
| Alpine:v3.11 | xen | 4.2.1-r0, 4.3.0-r4, 4.11.1-r1 |
| Alpine:v3.19 | xen | 4.7.0-r3, 4.7.0-r2, 4.7.0-r1 |
| Alpine:v3.20 | xen | 4.4.1-r8, 0, 4.7.0-r3 |
| Alpine:v3.22 | xen | 4.4.1-r3, 4.9.1-r2, 4.9.1-r1 |
| Alpine:v3.17 | xen | 4.7.1-r4, 4.7.0-r4, 4.7.0-r5 |
| Alpine:v3.14 | xen | 4.9.1-r3, 4.9.1-r2, 4.9.1-r1 |
Timeline
- Dec 15, 2020 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch