Debian DSA-4043-1 : samba - security update

critical Nessus Plugin ID 104722

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Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. The Common Vulnerabilities and Exposures project identifies the following issues :

- CVE-2017-14746 Yihan Lian and Zhibin Hu of Qihoo 360 GearTeam discovered a use-after-free vulnerability allowing a client to compromise a SMB server via malicious SMB1 requests.

- CVE-2017-15275 Volker Lendecke of SerNet and the Samba team discovered that Samba is prone to a heap memory information leak, where server allocated heap memory may be returned to the client without being cleared.

Solution

Upgrade the samba packages.

For the oldstable distribution (jessie), these problems have been fixed in version 2:4.2.14+dfsg-0+deb8u9.

For the stable distribution (stretch), these problems have been fixed in version 2:4.5.12+dfsg-2+deb9u1.

Plugin Details

Severity: Critical

ID: 104722

File Name: debian_DSA-4043.nasl

Version: 3.12

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/22/2017

Updated: 11/13/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2017-14746

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:samba, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/21/2017

Reference Information

CVE: CVE-2017-14746, CVE-2017-15275

DSA: 4043

Detections

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