VDB
ALPINE-CVE-2020-12663
ALPINE-CVE-2020-12663
PUBLISHED
CVSS 7.5 HIGH
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.10 | unbound | 1.9.1-r7, 1.4.22-r0, 1.4.21-r1 |
| Alpine:v3.17 | unbound | 1.5.10-r0, 1.9.6-r0, 1.9.5-r3 |
| Alpine:v3.23 | unbound | 1.5.7-r1, 0, 1.9.4-r1 |
| Alpine:v3.11 | unbound | 1.9.5-r1, 1.4.22-r1, 0 |
| Alpine:v3.16 | unbound | 1.4.19-r0, 0, 1.10.0-r0 |
| Alpine:v3.21 | unbound | 1.9.5-r1, 1.4.10-r2, 1.4.10-r3 |
| Alpine:v3.9 | unbound | 1.8.0-r0, 1.4.10-r0, 1.4.10-r1 |
| Alpine:v3.12 | unbound | 0, 1.10.0-r0, 1.4.10-r1 |
| Alpine:v3.13 | unbound | 1.9.6-r0, 0, 1.10.0-r0 |
| Alpine:v3.18 | unbound | 1.9.6-r0, 1.9.5-r3, 1.9.5-r2 |
| Alpine:v3.14 | unbound | 1.9.6-r0, 1.9.5-r3, 1.9.5-r2 |
| Alpine:v3.19 | unbound | 1.9.6-r0, 1.9.5-r3, 1.9.5-r2 |
| Alpine:v3.20 | unbound | 0, 1.10.0-r0, 1.4.10-r0 |
| Alpine:v3.15 | unbound | 1.9.6-r0, 0, 1.10.0-r0 |
| Alpine:v3.22 | unbound | 0, 1.9.6-r0, 1.9.5-r3 |
Timeline
- May 19, 2020 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch