VDB
ALPINE-CVE-2016-8622
ALPINE-CVE-2016-8622
PUBLISHED
CVSS 9.800000190734863 CRITICAL
The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.
Risk Scores
CVSS v3.0
9.800000190734863
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | curl | 0, 7.50.3-r1, 7.50.3-r0 |
| Alpine:v3.5 | curl | 7.21.7-r0, 7.19.4-r0, 7.19.5-r0 |
| Alpine:v3.15 | curl | 7.19.4-r0, 7.19.2-r0, 7.50.3-r1 |
| Alpine:v3.7 | curl | 0, 7.50.3-r1, 7.50.3-r0 |
| Alpine:v3.4 | curl | 7.37.1-r0, 7.20.1-r0, 7.19.2-r0 |
| Alpine:v3.20 | curl | 7.48.0-r0, 7.35.0-r0, 7.49.0-r0 |
| Alpine:v3.18 | curl | 7.22.0-r0, 0, 7.19.2-r0 |
| Alpine:v3.3 | curl | 7.34.0-r1, 7.36.0-r0, 7.37.0-r0 |
| Alpine:v3.2 | curl | 0, 7.49.1-r3, 7.49.1-r2 |
| Alpine:v3.22 | curl | 7.46.0-r0, 7.19.2-r1, 7.19.4-r0 |
| Alpine:v3.10 | curl | 7.50.3-r1, 7.19.2-r1, 0 |
| Alpine:v3.19 | curl | 7.50.3-r1, 0, 7.19.2-r0 |
| Alpine:v3.6 | curl | 0, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.23 | curl | 7.50.3-r1, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.17 | curl | 7.20.1-r0, 0, 7.19.4-r0 |
| Alpine:v3.9 | curl | 7.50.3-r1, 0, 7.19.4-r0 |
| Alpine:v3.11 | curl | 0, 7.50.3-r1, 7.50.3-r0 |
| Alpine:v3.16 | curl | 7.19.2-r0, 7.19.4-r0, 7.19.5-r0 |
| Alpine:v3.8 | curl | 7.50.3-r1, 7.50.3-r0, 7.50.2-r0 |
| Alpine:v3.14 | curl | 0, 7.50.3-r1, 7.50.3-r0 |
…and 2 more
Timeline
- Jul 31, 2018 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch