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Test ID:1.3.6.1.4.1.25623.1.0.811794
Category:Red Hat Local Security Checks
Title:RedHat Update for samba RHSA-2017:2789-01
Summary:The remote host is missing an update for the 'samba'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'samba'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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.

Security Fix(es):

* A race condition was found in samba server. A malicious samba client
could use this flaw to access files and directories in areas of the server
file system not exported under the share definitions. (CVE-2017-2619)

* It was found that samba did not enforce 'SMB signing' when certain
configuration options were enabled. A remote attacker could launch a
man-in-the-middle attack and retrieve information in plain-text.
(CVE-2017-12150)

* An information leak flaw was found in the way SMB1 protocol was
implemented by Samba. A malicious client could use this flaw to dump server
memory contents to a file on the samba share or to a shared printer, though
the exact area of server memory cannot be controlled by the attacker.
(CVE-2017-12163)

Red Hat would like to thank the Samba project for reporting CVE-2017-2619
and CVE-2017-12150 and Yihan Lian and Zhibin Hu (Qihoo 360 GearTeam),
Stefan Metzmacher (SerNet), and Jeremy Allison (Google) for reporting
CVE-2017-12163. Upstream acknowledges Jann Horn (Google) as the original
reporter of CVE-2017-2619 and Stefan Metzmacher (SerNet) as the original
reporter of CVE-2017-12150.

Affected Software/OS:
samba on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
6.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-2619
BugTraq ID: 97033
http://www.securityfocus.com/bid/97033
Debian Security Information: DSA-3816 (Google Search)
https://www.debian.org/security/2017/dsa-3816
https://www.exploit-db.com/exploits/41740/
RedHat Security Advisories: RHSA-2017:1265
https://access.redhat.com/errata/RHSA-2017:1265
RedHat Security Advisories: RHSA-2017:2338
https://access.redhat.com/errata/RHSA-2017:2338
RedHat Security Advisories: RHSA-2017:2778
https://access.redhat.com/errata/RHSA-2017:2778
RedHat Security Advisories: RHSA-2017:2789
https://access.redhat.com/errata/RHSA-2017:2789
http://www.securitytracker.com/id/1038117
CopyrightCopyright (C) 2017 Greenbone Networks GmbH

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