Debian DSA-4513-1 : samba - security update

critical Nessus Plugin ID 128479

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Synopsis

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

Description

Stefan Metzmacher discovered a flaw in Samba, a SMB/CIFS file, print, and login server for Unix. Specific combinations of parameters and permissions can allow user to escape from the share path definition and see the complete '/' filesystem. Unix permission checks in the kernel are still enforced.

Details can be found in the upstream advisory at https://www.samba.org/samba/security/CVE-2019-10197.html

Solution

Upgrade the samba packages.

For the stable distribution (buster), this problem has been fixed in version 2:4.9.5+dfsg-5+deb10u1.

Plugin Details

Severity: Critical

ID: 128479

File Name: debian_DSA-4513.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/4/2019

Updated: 12/31/2019

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/3/2019

Vulnerability Publication Date: 9/3/2019

Reference Information

CVE: CVE-2019-10197

DSA: 4513

Detections

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