RHEL 7 : Storage Server (RHSA-2017:0495)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

An update for samba is now available for Red Hat Gluster Storage 3.2
for RHEL 7.

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) protocol and the related Common Internet File System (CIFS)
protocol, which allow PC-compatible machines to share files, printers,
and various information.

The following packages have been upgraded to a later upstream version:
samba (4.4.6). (BZ#1382287)

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)

Enhancement(s) :

* gluster vfs plugin now supports more than one volfile servers. Samba
tries to connect to the next server on the list if one of the gluster
server is not reachable. (BZ#1330081)

See also :

https://www.redhat.com/security/data/cve/CVE-2016-2125.html
https://www.redhat.com/security/data/cve/CVE-2016-2126.html
http://rhn.redhat.com/errata/RHSA-2017-0495.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:A/AC:M/Au:N/C:P/I:P/A:N)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 97931 ()

Bugtraq ID:

CVE ID: CVE-2016-2125
CVE-2016-2126

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