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

VendorProductVersions
Alpine:v3.23curl0, 0, 7.63.0-r0
Alpine:v3.21curl7.21.5-r0, 7.19.4-r0, 7.19.5-r0
Alpine:v3.18curl7.39.0-r0, 7.42.0-r0, 7.42.1-r0
Alpine:v3.24curl0, 0
Alpine:v3.11curl7.47.0-r0, 7.37.1-r0, 7.37.0-r0
Alpine:v3.20curl7.52.1-r0, 7.52.0-r0, 0
Alpine:v3.22curl0, 0, 7.51.0-r0
Alpine:v3.7curl0, 7.19.2-r0, 0
Alpine:v3.12curl7.21.3-r1, 0, 7.19.2-r0
Alpine:v3.19curl7.38.0-r0, 7.39.0-r0, 7.40.0-r0
Alpine:v3.13curl7.21.6-r0, 7.46.0-r0, 7.45.0-r1
Alpine:v3.14curl0, 0, 7.63.0-r0
Alpine:v3.16curl7.21.2-r0, 0, 7.19.2-r0
Alpine:v3.8curl7.21.6-r0, 7.21.7-r0, 7.21.7-r1
Alpine:v3.17curl7.36.0-r0, 7.35.0-r0, 7.34.0-r1
Alpine:v3.10curl0, 0, 7.19.2-r0
Alpine:v3.15curl7.44.0-r0, 7.43.0-r0, 7.21.1-r0
Alpine:v3.6curl7.19.6-r0, 7.38.0-r0, 0

Timeline

  • Feb 6, 2019 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jun 9, 2026 CVE Updated
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