VDB
ALPINE-CVE-2018-16890
ALPINE-CVE-2018-16890
PUBLISHED
CVSS 7.5 HIGH
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.23 | curl | 7.56.1-r1, 7.55.0-r0, 7.49.1-r0 |
| Alpine:v3.21 | curl | 7.55.1-r0, 7.19.2-r1, 7.19.4-r0 |
| Alpine:v3.18 | curl | 7.19.6-r0, 7.20.1-r0, 7.20.1-r1 |
| Alpine:v3.24 | curl | 0 |
| Alpine:v3.11 | curl | 7.52.1-r1, 7.19.5-r0, 7.19.4-r0 |
| Alpine:v3.20 | curl | 7.51.0-r0, 7.38.0-r0, 7.19.4-r0 |
| Alpine:v3.22 | curl | 7.53.0-r0, 7.43.0-r0, 0 |
| Alpine:v3.7 | curl | 0, 7.45.0-r1, 7.46.0-r2 |
| Alpine:v3.12 | curl | 7.54.1-r0, 0, 7.19.2-r0 |
| Alpine:v3.19 | curl | 7.19.6-r0, 7.20.1-r0, 7.20.1-r1 |
| Alpine:v3.13 | curl | 7.22.0-r0, 7.56.1-r1, 7.63.0-r0 |
| Alpine:v3.14 | curl | 7.49.1-r0, 7.61.0-r0, 7.38.0-r0 |
| Alpine:v3.16 | curl | 7.47.0-r0, 0, 7.19.2-r0 |
| Alpine:v3.8 | curl | 7.20.1-r1, 7.21.0-r0, 7.21.1-r0 |
| Alpine:v3.17 | curl | 7.19.2-r1, 7.19.2-r0, 0 |
| Alpine:v3.10 | curl | 7.46.0-r0, 7.19.2-r0, 7.19.4-r0 |
| Alpine:v3.15 | curl | 7.58.0-r1, 7.58.0-r0, 7.57.0-r0 |
| Alpine:v3.6 | curl | 7.21.2-r0, 7.19.5-r0, 0 |
Timeline
- Feb 6, 2019 CVE Published
- Jun 9, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch