VDB
ALPINE-CVE-2023-28320
ALPINE-CVE-2023-28320
PUBLISHED
CVSS 5.900000095367432 MEDIUM
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.
Risk Scores
CVSS 3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.17 | curl | 7.19.2-r0, 0, 7.75.0-r0 |
| Alpine:v3.23 | curl | 7.58.0-r1, 7.20.1-r1, 7.30.0-r0 |
| Alpine:v3.24 | curl | 0 |
| Alpine:v3.18 | curl | 7.28.1-r0, 7.30.0-r0, 7.31.0-r0 |
| Alpine:v3.16 | curl | 7.29.0-r0, 7.58.0-r1, 7.79.0-r0 |
| Alpine:v3.20 | curl | 7.76.1-r0, 0, 7.19.2-r0 |
| Alpine:v3.15 | curl | 0, 7.69.0-r1, 7.64.0-r0 |
| Alpine:v3.19 | curl | 7.25.0-r0, 7.23.1-r0, 7.21.7-r2 |
| Alpine:v3.22 | curl | 7.50.2-r0, 7.19.2-r1, 7.19.5-r0 |
| Alpine:v3.21 | curl | 7.19.2-r0, 7.86.0-r0, 7.21.5-r1 |
Timeline
- May 26, 2023 CVE Published
- Aug 7, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch