VDB
ALPINE-CVE-2023-27537
ALPINE-CVE-2023-27537
PUBLISHED
CVSS 5.900000095367432 MEDIUM
A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
Risk Scores
CVSS v3.1
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:v3.22 | curl | 7.88.1-r1, 7.66.0-r0, 0 |
| Alpine:v3.18 | curl | 7.88.1-r1, 7.21.3-r1, 0 |
| Alpine:v3.19 | curl | 7.19.4-r0, 0, 7.82.0-r0 |
| Alpine:v3.15 | curl | 7.80.0-r6, 7.80.0-r5, 7.80.0-r4 |
| Alpine:v3.23 | curl | 7.33.0-r0, 0, 7.19.2-r0 |
| Alpine:v3.17 | curl | 7.55.0-r0, 7.54.1-r0, 7.54.0-r0 |
| Alpine:v3.14 | curl | 7.46.0-r0, 0, 7.19.2-r1 |
| Alpine:v3.20 | curl | 7.65.3-r0, 7.88.1-r1, 7.88.1-r0 |
| Alpine:v3.16 | curl | 7.49.1-r0, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.21 | curl | 7.88.1-r1, 7.88.1-r0, 7.88.0-r1 |
Timeline
- Mar 30, 2023 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch