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Debian DSA-4427-1 : samba - security update

medium Nessus Plugin ID 123835

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Synopsis

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

Description

Michael Hanselmann discovered that Samba, a SMB/CIFS file, print, and login server for Unix, was vulnerable to a symlink traversal attack.
It would allow remote authenticated users with write permission to either write or detect files outside of Samba shares.

Solution

Upgrade the samba packages.

For the stable distribution (stretch), this problem has been fixed in version 2:4.5.16+dfsg-1+deb9u1.

See Also

https://security-tracker.debian.org/tracker/source-package/samba

https://packages.debian.org/source/stretch/samba

https://www.debian.org/security/2019/dsa-4427

Plugin Details

Severity: Medium

ID: 123835

File Name: debian_DSA-4427.nasl

Version: 1.6

Type: local

Agent: unix

Published: 4/9/2019

Updated: 6/5/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2019-3880

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/8/2019

Vulnerability Publication Date: 4/9/2019

Reference Information

CVE: CVE-2019-3880

DSA: 4427