Security Bulletin: A vulnerability in Samba affects IBM OS Image for Red Hat Linux Systems on IBM PureApplication (CVE-2018-1050)

Summary

Samba is used by IBM OS Image for Red Hat Linux Systems on IBM PureApplication. The products that are identified for this support are:
- PureApplication System
- PureApplication Software
- PureApplication Service

The following vulnerability has been addressed.

Vulnerability Details

CVE-ID: CVE-2018-1050
Description: Samba is vulnerable to a denial of service, caused by missing null pointer checks on some of the input parameters. By sending specially RPC calls to the ‘spoolss’ service, a remote attacker could exploit this vulnerability to cause the print spooler service to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/140206&gt; for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM PureApplication System V2.2.1.0
IBM PureApplication System V2.2.2.0
IBM PureApplication System V2.2.3.0
IBM PureApplication System V2.2.3.1
IBM PureApplication System V2.2.3.2
IBM PureApplication System V2.2.4.0
IBM PureApplication System V2.2.5.0
IBM PureApplication System V2.2.5.1
IBM PureApplication System V2.2.5.2

Remediation/Fixes

Download the fix from IBM Fix Central and apply them to address this vulnerability. See the following link:

https://www-945.ibm.com/support/fixcentral/swg/selectFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.2.5.2&platform=AIX&function=all

IBM recommends upgrading to a fixed version of the product. Contact IBM for assistance.

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

Workarounds and Mitigations

None