Security Bulletin: Open Source Samba Samba Vulnerabilities which is used by IBM OS Images for RedHat Linux in IBM PureApplication Systems (CVE-2017-12163 CVE-2017-12150)

Summary

There are vulnerabilities in the Open Source Samba that is used by the OS Images for IBM PureApplication Software Suite, IBM Bluemix Local System and IBM PureApplication System/Software

Vulnerability Details

CVEID: CVE-2017-12163**
DESCRIPTION:** Samba could allow a remote authenticated attacker to obtain sensitive information, caused by a memory leak over SMB1. By sending specially crafted SMB1 data, an attacker could exploit this vulnerability to cause portions of server memory contents to be written to a file and obtain sensitive information.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/132351 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2017-12150**
DESCRIPTION:** Samba could allow a remote attacker to obtain sensitive information, caused by the failure to require SMB signing in SMB1/2/3 connections. An attacker could exploit this vulnerability using man-in-the-middle techniques to hijack client connections and obtain sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/132349 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

IBM OS Image for Red Hat Linux Systems 2.1.5.0
IBM OS Image for Red Hat Linux Systems 2.1.6.0
IBM OS Image for Red Hat Linux Systems 2.1.7.0
IBM OS Image for Red Hat Linux Systems 2.1.8.0
IBM OS Image for Red Hat Linux Systems 3.0.5.0
IBM OS Image for Red Hat Linux Systems 3.0.6.0
IBM OS Image for Red Hat Linux Systems 3.0.7.0

Remediation/Fixes

The solution is to upgrade the IBM PureApplication System to the following fix level:

IBM PureApplication V2.2.0.0, V2.2.1.0, V2.2.2.0, V2.2.2.1, V2.2.2.2, V2.2.3.0, V2.2.3.1, V2.2.3.2, V2.2.4.0

• Upgrade to IBM PureApplication V2.2.5.0. Contact IBM for assistance.

PureApplication Software:
Linux:
http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.5.0&platform=All&function=fixId&fixids=pureappsw_content_2250&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc

PureApplication System:
AIX
http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.5.0&platform=All&function=fixId&fixids=Group_Content_PureApplicationSystem_2.2.5.0_Power&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc

Linux
http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.5.0&platform=All&function=fixId&fixids=Group_Content_PureApplicationSystem_2.2.5.0_Intel&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc

Intel
http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.5.0&platform=All&function=fixId&fixids=Group_Base_RedHat_PureApplicationSystem_2.2.5.0_Intel&includeRequisites=1&includeSupersedes=0&downloadMethod=ddp&source=fc

Information on upgrading can be found here: <http://www-01.ibm.com/support/docview.wss?uid=swg27039159&gt;

Workarounds and Mitigations

None