Debian DLA-2207-1 : libntlm security update

critical Nessus Plugin ID 136429

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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that 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.

For Debian 8 'Jessie', this problem has been fixed in version 1.4-3+deb8u1.

We recommend that you upgrade your libntlm packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected libntlm0, and libntlm0-dev packages.

Plugin Details

Severity: Critical

ID: 136429

File Name: debian_DLA-2207.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/11/2020

Updated: 3/13/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-17455

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libntlm0, p-cpe:/a:debian:debian_linux:libntlm0-dev, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/10/2020

Vulnerability Publication Date: 10/10/2019

Reference Information

CVE: CVE-2019-17455

Detections

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