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ALPINE-CVE-2020-29485

ALPINE-CVE-2020-29485 PUBLISHED CVSS 5.5 MEDIUM

An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.

Risk Scores

CVSS v3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.12xen4.9.1-r3, 4.9.1-r2, 4.9.1-r1
Alpine:v3.15xen4.2.0-r6, 4.2.0-r5, 4.2.0-r3
Alpine:v3.18xen4.7.0-r2, 4.7.0-r4, 4.7.0-r5
Alpine:v3.21xen4.0.1-r3, 4.9.1-r2, 4.9.1-r1
Alpine:v3.23xen4.12.1-r1, 4.12.1-r0, 4.12.0-r3
Alpine:v3.20xen4.12.1-r2, 0, 4.0.1-r0
Alpine:v3.11xen4.7.0-r3, 4.7.0-r4, 4.7.0-r5
Alpine:v3.16xen4.7.0-r1, 4.7.0-r4, 4.7.0-r5
Alpine:v3.17xen4.7.0-r3, 4.7.0-r4, 4.7.0-r5
Alpine:v3.19xen4.0.1-r1, 0, 4.9.1-r3
Alpine:v3.14xen4.7.0-r3, 4.9.1-r3, 4.9.1-r2
Alpine:v3.22xen4.0.1-r1, 0, 4.7.0-r4
Alpine:v3.13xen4.9.1-r3, 4.7.0-r3, 4.7.0-r4

Timeline

  • Dec 15, 2020 CVE Published
  • Dec 3, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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