CVE-2019-17455
CRITICAL9.8EPSS 7.1%libntlm - security update
Published: 10/10/2019Modified: 4/28/2026
Description
Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM request.
Affected packages (3)
- Debian/libntlmfrom 0, < 1.6-1
- Debian/libntlmfrom 0, < 1.4-3+deb8u1
- Debian/libntlmfrom 0, < 1.4-8+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |