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AUSCERT External Security Bulletin Redistribution
ESB-2018.3155
Security Bulletin: A vulnerability in Samba affects IBM OS Image for Red
Hat Linux Systems on IBM PureApplication (CVE-2018-1050)
18 October 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM PureApplication
Publisher: IBM
Operating System: Linux variants
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1050
Reference: ESB-2018.3028
ESB-2018.2911
ESB-2018.2617
ESB-2018.2393
ESB-2018.2354
ESB-2018.1794
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10728649
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Security Bulletin: A vulnerability in Samba affects IBM OS Image for Red Hat
Linux Systems on IBM PureApplication (CVE-2018-1050)
Document information
More support for: PureApplication System
Software version: 2.2.1.0, 2.2.2.0, 2.2.3.0, 2.2.3.1, 2.2.3.2, 2.2.4.0,
2.2.5.0, 2.2.5.1, 2.2.5.2
Operating system(s): Linux
Software edition: All Editions
Reference #: 0728649
Modified date: 17 October 2018
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 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/selectFixesparent=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.wssuid=swg27039159
Workarounds and Mitigations
None
Change History
October 16, 2018: Original document published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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