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FreeBSD: VID-0F798BD6-8325-11EA-9A78-08002728F74C (CVE-2019-17455): libntlm -- buffer overflow vulnerability

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FreeBSD: VID-0F798BD6-8325-11EA-9A78-08002728F74C (CVE-2019-17455): libntlm -- buffer overflow vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
10/08/2019
Created
04/24/2020
Added
04/22/2020
Modified
04/22/2020

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(s)

  • freebsd-upgrade-package-libntlm

References

  • CVE-2019-17455

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