VDB
ALPINE-CVE-2021-23017
ALPINE-CVE-2021-23017
PUBLISHED
CVSS 7.699999809265137 HIGH
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Risk Scores
CVSS 3.1
7.699999809265137
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | nginx | 0.8.53-r0, 1.0.11-r1, 1.0.14-r0 |
| Alpine:v3.13 | nginx | 1.0.14-r0, 0.8.53-r0, 0.8.54-r1 |
| Alpine:v3.20 | nginx | 0, 0.6.18, 0.6.18 |
| Alpine:v3.16 | nginx | 1.18.0-r9, 0, 0.8.53-r0 |
| Alpine:v3.10 | nginx | 1.0.11-r1, 0, 0.6.18 |
| Alpine:v3.17 | nginx | 1.4.2-r0, 1.6.0-r1, 1.6.0-r2 |
| Alpine:v3.19 | nginx | 1.20.0-r0, 0.8.54-r1, 0.8.54-r0 |
| Alpine:v3.12 | nginx | 1.16.0-r0, 1.14.1-r0, 1.14.0-r2 |
| Alpine:v3.24 | nginx | 0, 0.6.18, 0.6.18 |
| Alpine:v3.11 | nginx | 1.4.0-r1, 1.0.11-r0, 1.0.11-r1 |
| Alpine:v3.15 | nginx | 1.6.3-r0, 1.9.14-r0, 1.9.11-r0 |
| Alpine:v3.18 | nginx | 1.6.0-r3, 1.6.2-r0, 1.6.2-r1 |
| Alpine:v3.14 | nginx | 1.0.11-r0, 1.0.11-r1, 1.0.14-r0 |
| Alpine:v3.22 | nginx | 1.0.4-r1, 1.0.14-r0, 1.0.11-r1 |
| Alpine:v3.21 | nginx | 0, 1.6.2-r1, 1.9.14-r1 |
Timeline
- Jun 1, 2021 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch