VDB
ALPINE-CVE-2023-27535
ALPINE-CVE-2023-27535
PUBLISHED
CVSS 5.900000095367432 MEDIUM
An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.
Risk Scores
CVSS 3.1
5.900000095367432
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.24 | curl | 0 |
| Alpine:v3.18 | curl | 7.87.0-r3, 7.87.0-r2, 7.87.0-r1 |
| Alpine:v3.16 | curl | 7.19.7-r1, 7.20.1-r1, 7.21.0-r0 |
| Alpine:v3.19 | curl | 7.87.0-r0, 7.84.0-r2, 7.88.1-r1 |
| Alpine:v3.21 | curl | 7.79.0-r0, 7.21.0-r0, 7.21.1-r0 |
| Alpine:v3.22 | curl | 7.68.0-r0, 7.34.0-r0, 7.44.0-r0 |
| Alpine:v3.23 | curl | 7.62.0-r1, 0, 7.19.2-r0 |
| Alpine:v3.20 | curl | 7.64.1-r3, 7.72.0-r0, 7.65.0-r0 |
| Alpine:v3.14 | curl | 7.21.7-r1, 7.21.7-r2, 7.19.2-r0 |
| Alpine:v3.17 | curl | 7.77.0-r1, 7.76.1-r0, 7.76.0-r0 |
| Alpine:v3.15 | curl | 7.19.2-r0, 7.21.7-r2, 7.21.7-r0 |
Timeline
- Mar 30, 2023 CVE Published
- Aug 7, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch