CVE-2018-16890
HIGH7.5EPSS 1.2%curl - security update
Published: 2/6/2019Modified: 4/28/2026
Description
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.
Affected packages (4)
- Alpine/curlfrom 0, < 7.64.0-r0
- Debian/curlfrom 0, < 7.64.0-1
- Debian/curlfrom 0, < 7.38.0-4+deb8u14
- Debian/curlfrom 0, < 7.52.1-5+deb9u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |