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.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-libntlm | May 12, 2020 | Oct 10, 2019 | |
| Freebsd | freebsd-upgrade-package-libntlm | Apr 22, 2020 | Apr 21, 2020 | |
| Redhat_linux | no-fix-redhat-rpm-package | Jul 9, 2025 | Oct 10, 2019 | |
| Suse | — | suse-upgrade-libntlm-develsuse-upgrade-libntlm0 | Jun 16, 2020 | Oct 10, 2019 |
| Ubuntu | ubuntu-pro-upgrade-libntlm0ubuntu-upgrade-libntlm0 | Oct 9, 2021 | Oct 10, 2019 |
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