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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

VendorProductVersions
Alpine:v3.13xen4.1.2-r9, 4.11.1-r1, 4.12.0-r1
Alpine:v3.12xen4.12.0-r0, 4.11.1-r1, 4.11.1-r0
Alpine:v3.23xen4.7.1-r5, 4.9.1-r3, 4.9.1-r2
Alpine:v3.15xen4.7.0-r3, 4.9.1-r3, 4.9.1-r2
Alpine:v3.21xen4.4.1-r3, 4.4.1-r1, 4.4.1-r0
Alpine:v3.16xen4.13.0-r2, 0, 4.0.1-r0
Alpine:v3.18xen4.4.1-r3, 4.7.0-r4, 4.7.0-r5
Alpine:v3.11xen4.2.1-r0, 4.3.0-r4, 4.11.1-r1
Alpine:v3.19xen4.7.0-r3, 4.7.0-r2, 4.7.0-r1
Alpine:v3.20xen4.4.1-r8, 0, 4.7.0-r3
Alpine:v3.22xen4.4.1-r3, 4.9.1-r2, 4.9.1-r1
Alpine:v3.17xen4.7.1-r4, 4.7.0-r4, 4.7.0-r5
Alpine:v3.14xen4.9.1-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
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