VDB
ALPINE-CVE-2020-29486
ALPINE-CVE-2020-29486
PUBLISHED
CVSS 6 MEDIUM
An issue was discovered in Xen through 4.14.x. Nodes in xenstore have an ownership. In oxenstored, a owner could give a node away. However, node ownership has quota implications. Any guest can run another guest out of quota, or create an unbounded number of nodes owned by dom0, thus running xenstored out of memory A malicious guest administrator can cause a denial of service against a specific guest or against the whole host. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
Risk Scores
CVSS v3.1
6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.22 | xen | 4.2.0-r7, 4.2.0-r6, 4.2.0-r4 |
| Alpine:v3.20 | xen | 4.7.2-r0, 0, 4.0.1-r0 |
| Alpine:v3.11 | xen | 4.2.2-r4, 4.7.0-r2, 4.7.0-r1 |
| Alpine:v3.14 | xen | 4.13.1-r0, 4.7.0-r3, 4.7.0-r2 |
| Alpine:v3.17 | xen | 4.6.1-r0, 4.2.1-r3, 0 |
| Alpine:v3.12 | xen | 4.1.1-r2, 4.10.0-r0, 4.11.1-r0 |
| Alpine:v3.15 | xen | 4.3.0-r7, 0, 4.0.1-r0 |
| Alpine:v3.23 | xen | 4.9.1-r3, 4.0.1-r1, 4.0.1-r2 |
| Alpine:v3.18 | xen | 4.9.1-r3, 4.9.1-r2, 4.9.1-r1 |
| Alpine:v3.13 | xen | 4.0.1-r0, 4.9.1-r3, 4.9.1-r2 |
| Alpine:v3.16 | xen | 4.7.0-r1, 4.7.0-r2, 4.7.0-r3 |
| Alpine:v3.19 | xen | 4.0.1-r2, 4.0.1-r1, 4.9.1-r3 |
| Alpine:v3.21 | xen | 4.12.0-r0, 4.11.0-r1, 4.11.0-r0 |
Timeline
- Dec 15, 2020 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch