Debian DSA-4043-1 : samba - security update

High Nessus Plugin ID 104722

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.

See Also

https://security-tracker.debian.org/tracker/CVE-2017-14746

https://security-tracker.debian.org/tracker/CVE-2017-15275

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

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

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

https://www.debian.org/security/2017/dsa-4043

Plugin Details

Severity: High

ID: 104722

File Name: debian_DSA-4043.nasl

Version: 3.10

Type: local

Agent: unix

Published: 2017/11/22

Updated: 2018/11/13

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

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

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

Patch Publication Date: 2017/11/21

Reference Information

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

DSA: 4043