Amazon Linux 2 : samba (ALAS-2018-1126)

high Nessus Plugin ID 119781

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

A NULL pointer dereference flaw was found in Samba RPC external printer service. An attacker could use this flaw to cause the printer spooler service to crash.(CVE-2018-1050)

A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client.(CVE-2018-10858)

A flaw was found in the way samba allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client.(CVE-2018-1139)

Solution

Run 'yum update samba' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-1126.html

Plugin Details

Severity: High

ID: 119781

File Name: al2_ALAS-2018-1126.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/20/2018

Updated: 3/27/2020

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ctdb, p-cpe:/a:amazon:linux:ctdb-tests, p-cpe:/a:amazon:linux:libsmbclient, p-cpe:/a:amazon:linux:libsmbclient-devel, p-cpe:/a:amazon:linux:libwbclient, p-cpe:/a:amazon:linux:libwbclient-devel, p-cpe:/a:amazon:linux:samba, p-cpe:/a:amazon:linux:samba-client, p-cpe:/a:amazon:linux:samba-client-libs, p-cpe:/a:amazon:linux:samba-common, p-cpe:/a:amazon:linux:samba-common-libs, p-cpe:/a:amazon:linux:samba-common-tools, p-cpe:/a:amazon:linux:samba-dc, p-cpe:/a:amazon:linux:samba-dc-libs, p-cpe:/a:amazon:linux:samba-debuginfo, p-cpe:/a:amazon:linux:samba-devel, p-cpe:/a:amazon:linux:samba-krb5-printing, p-cpe:/a:amazon:linux:samba-libs, p-cpe:/a:amazon:linux:samba-pidl, p-cpe:/a:amazon:linux:samba-python, p-cpe:/a:amazon:linux:samba-python-test, p-cpe:/a:amazon:linux:samba-test, p-cpe:/a:amazon:linux:samba-test-libs, p-cpe:/a:amazon:linux:samba-vfs-glusterfs, p-cpe:/a:amazon:linux:samba-winbind, p-cpe:/a:amazon:linux:samba-winbind-clients, p-cpe:/a:amazon:linux:samba-winbind-krb5-locator, p-cpe:/a:amazon:linux:samba-winbind-modules, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/19/2018

Vulnerability Publication Date: 3/13/2018

Reference Information

CVE: CVE-2018-1050, CVE-2018-10858, CVE-2018-1139

ALAS: 2018-1126