VDB
ALPINE-CVE-2018-16840
ALPINE-CVE-2018-16840
PUBLISHED
CVSS 9.800000190734863 CRITICAL
A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.15 | curl | 7.19.2-r0, 7.19.2-r1, 7.19.4-r0 |
| Alpine:v3.17 | curl | 0, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.8 | curl | 7.59.0, 0, 7.61.1-r0 |
| Alpine:v3.21 | curl | 0, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.24 | curl | 7.59.0, 0 |
| Alpine:v3.11 | curl | 7.59.0, 0, 7.61.1-r0 |
| Alpine:v3.20 | curl | 0, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.12 | curl | 7.21.7-r0, 0, 7.19.2-r0 |
| Alpine:v3.19 | curl | 7.50.2-r0, 0, 7.19.2-r0 |
| Alpine:v3.14 | curl | 7.49.1-r0, 0, 7.19.2-r0 |
| Alpine:v3.10 | curl | 7.55.1-r0, 7.51.0-r1, 7.52.0-r0 |
| Alpine:v3.16 | curl | 0, 0, 7.19.2-r0 |
| Alpine:v3.5 | curl | 7.42.0-r0, 7.42.1-r0, 7.42.1-r1 |
| Alpine:v3.23 | curl | 7.33.0-r0, 7.21.2-r0, 7.61.1-r0 |
| Alpine:v3.9 | curl | 7.28.0-r0, 7.28.1-r0, 7.29.0-r0 |
| Alpine:v3.13 | curl | 7.54.1-r0, 0, 7.19.2-r0 |
| Alpine:v3.18 | curl | 7.19.2-r0, 0, 7.59.0 |
| Alpine:v3.6 | curl | 7.46.0-r0, 7.28.1-r0, 7.29.0-r0 |
| Alpine:v3.7 | curl | 7.21.5-r1, 0, 7.61.1-r0 |
| Alpine:v3.22 | curl | 7.45.0-r1, 7.46.0-r0, 7.46.0-r1 |
Timeline
- Oct 31, 2018 CVE Published
- Apr 30, 2026 Distribution Patch
- Jul 8, 2026 CVE Updated