vulnerability

Red Hat: CVE-2019-17455: libntlm: stack-based buffer overflow in buildSmbNtlmAuthRequest in smbutil.c

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Oct 10, 2019
Added
Jul 9, 2025
Modified
Jul 9, 2025

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.

Solution

no-fix-redhat-rpm-package
Title
NEW

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