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Category:   Application (File Transfer/Sharing)  >   Samba Vendors:   Samba.org
(Oracle Issues Fix for Oracle Linux) Samba SMB1 Use-After-Free Memory Error Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1039907
SecurityTracker URL:  http://securitytracker.com/id/1039907
CVE Reference:   CVE-2017-14746   (Links to External Site)
Date:  Nov 30 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0.0 and after
Description:   A vulnerability was reported in Samba. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted SMB1 requests to trigger a use-after-free memory error and execute arbitrary code on the target system. The code will run with the privileges of the target service.

Yihan Lian and Zhibin Hu of Qihoo 360 GearTeam reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   Oracle has issued a fix.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2017-3260.html

Vendor URL:  linux.oracle.com/errata/ELSA-2017-3260.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Nov 21 2017 Samba SMB1 Use-After-Free Memory Error Lets Remote Users Execute Arbitrary Code on the Target System



 Source Message Contents

Subject:  [El-errata] ELSA-2017-3260 Important: Oracle Linux 7 samba security update

Oracle Linux Security Advisory ELSA-2017-3260

http://linux.oracle.com/errata/ELSA-2017-3260.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
libsmbclient-4.6.2-12.el7_4.i686.rpm
libsmbclient-4.6.2-12.el7_4.x86_64.rpm
libsmbclient-devel-4.6.2-12.el7_4.i686.rpm
libsmbclient-devel-4.6.2-12.el7_4.x86_64.rpm
libwbclient-4.6.2-12.el7_4.i686.rpm
libwbclient-4.6.2-12.el7_4.x86_64.rpm
libwbclient-devel-4.6.2-12.el7_4.i686.rpm
libwbclient-devel-4.6.2-12.el7_4.x86_64.rpm
samba-4.6.2-12.el7_4.x86_64.rpm
samba-client-4.6.2-12.el7_4.x86_64.rpm
samba-client-libs-4.6.2-12.el7_4.i686.rpm
samba-client-libs-4.6.2-12.el7_4.x86_64.rpm
samba-common-4.6.2-12.el7_4.noarch.rpm
samba-common-libs-4.6.2-12.el7_4.x86_64.rpm
samba-common-tools-4.6.2-12.el7_4.x86_64.rpm
samba-dc-4.6.2-12.el7_4.x86_64.rpm
samba-dc-libs-4.6.2-12.el7_4.x86_64.rpm
samba-devel-4.6.2-12.el7_4.i686.rpm
samba-devel-4.6.2-12.el7_4.x86_64.rpm
samba-krb5-printing-4.6.2-12.el7_4.x86_64.rpm
samba-libs-4.6.2-12.el7_4.i686.rpm
samba-libs-4.6.2-12.el7_4.x86_64.rpm
samba-pidl-4.6.2-12.el7_4.noarch.rpm
samba-python-4.6.2-12.el7_4.x86_64.rpm
samba-test-4.6.2-12.el7_4.x86_64.rpm
samba-test-libs-4.6.2-12.el7_4.i686.rpm
samba-test-libs-4.6.2-12.el7_4.x86_64.rpm
samba-vfs-glusterfs-4.6.2-12.el7_4.x86_64.rpm
samba-winbind-4.6.2-12.el7_4.x86_64.rpm
samba-winbind-clients-4.6.2-12.el7_4.x86_64.rpm
samba-winbind-krb5-locator-4.6.2-12.el7_4.x86_64.rpm
samba-winbind-modules-4.6.2-12.el7_4.i686.rpm
samba-winbind-modules-4.6.2-12.el7_4.x86_64.rpm
ctdb-4.6.2-12.el7_4.x86_64.rpm
ctdb-tests-4.6.2-12.el7_4.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/samba-4.6.2-12.el7_4.src.rpm



Description of changes:

[4.6.2-12]
- resolves: #1514314 - Fix CVE-2017-14746 and CVE-2017-15275


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