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

Security Bulletin

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/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

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

Advisory ID 11530

Product Record ID 112812

RTC 239866

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Tips

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