RHEL 6 : samba4 (RHSA-2017:0744)

medium Nessus Plugin ID 97884

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for samba4 is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Samba is an open source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.

Security Fix(es) :

* It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125)

* A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126)

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 97884

File Name: redhat-RHSA-2017-0744.nasl

Version: 3.15

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/22/2017

Updated: 10/24/2019

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:samba4, p-cpe:/a:redhat:enterprise_linux:samba4-client, p-cpe:/a:redhat:enterprise_linux:samba4-common, p-cpe:/a:redhat:enterprise_linux:samba4-dc, p-cpe:/a:redhat:enterprise_linux:samba4-dc-libs, p-cpe:/a:redhat:enterprise_linux:samba4-debuginfo, p-cpe:/a:redhat:enterprise_linux:samba4-devel, p-cpe:/a:redhat:enterprise_linux:samba4-libs, p-cpe:/a:redhat:enterprise_linux:samba4-pidl, p-cpe:/a:redhat:enterprise_linux:samba4-python, p-cpe:/a:redhat:enterprise_linux:samba4-test, p-cpe:/a:redhat:enterprise_linux:samba4-winbind, p-cpe:/a:redhat:enterprise_linux:samba4-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba4-winbind-krb5-locator, cpe:/o:redhat:enterprise_linux:6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/21/2017

Vulnerability Publication Date: 5/11/2017

Reference Information

CVE: CVE-2016-2125, CVE-2016-2126

RHSA: 2017:0744

Detections

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