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Security Bulletin: Microarchitectural Data Sampling (MDS) Vulnerabilites affect OS Image for RedHat Linux for IBM Cloud Pak System

Description

## Summary Microarchitectural Data Sampling (MDS) Vulnerabilities affect OS Image for RedHat Linux for IBM Cloud Pak System formerly known as IBM PureApplication System. OS image for Red Hat Linux Systems for Cloud Pak System based deployments have addressed the vulnerabilities. ## Vulnerability Details **CVEID:** [CVE-2019-11091](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11091>) **DESCRIPTION:** Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling Uncacheable Memory (MDSUM) vulnerability that allows uncacheable memory on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack. CVSS Base Score: 3.8 CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160993> for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N) **CVEID:** [CVE-2018-12130](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12130>) **DESCRIPTION:** Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that fills buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack. CVSS Base Score: 6.5 CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160992> for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) **CVEID:** [CVE-2018-12127](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12127>) **DESCRIPTION:** Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that fills buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack. CVSS Base Score: 6.5 CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160991> for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) **CVEID:** [CVE-2018-12126](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12126>) **DESCRIPTION:** Intel Microprocessor could allow a local authenticated attacker to obtain sensitive information, caused by a Microarchitectural Data Sampling (MDS) vulnerability that stores buffers on some microprocessors utilizing speculative execution. An attacker could exploit this vulnerability using a side-channel attack to obtain data that is being processed in the CPU by other apps. Note: This is called the Zombieload attack. CVSS Base Score: 6.5 CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/160990> for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) ## Affected Products and Versions OS Image for Red Hat Linux Systems 3.0.8.0 OS Image for Red Hat Linux Systems 3.0.9.0 OS Image for Red Hat Linux Systems 3.0.10 ## Remediation/Fixes For OS Image for Red Hat Linux Systems for IBM Cloud Pak System V2.2.5-2.2.6 \- make sure to access via _ssh _your VMs and run _yum update kernel_ command. The VM should be connected to the satellite server to download new kernel packages from the repository. Notice. Before updating the production environment, work on your pattern instances on a test environment to make sure everything works after kernel update. For OS Image for Red Hat Linux Systems forIBM Cloud Pak System V2.3.0.0 upgrade to the following fix pack : IBM CloudPak System V2.3.0.1. As for OS Image apply the Linux fixes as available at [IBM Fix Central](<https://www.ibm.com/support/fixcentral>). For unsupported versions/release/ platform IBM recommends upgrading to a fixed, supported version of the product. Contact IBM Cloud Pak System support for assistance. **Information on upgrading can be found here: **<https://www.ibm.com/support/pages/node/887959/latest> ## Get Notified about Future Security Bulletins Subscribe to [My Notifications](< http://www-01.ibm.com/software/support/einfo.html>) to be notified of important product support alerts like this. ### References [Complete CVSS v3 Guide](<http://www.first.org/cvss/user-guide> "Link resides outside of ibm.com" ) [On-line Calculator v3](<http://www.first.org/cvss/calculator/3.0> "Link resides outside of ibm.com" ) Off [RedHat Errata](<https://access.redhat.com/errata/RHSA-2019:1169>) ## Related Information [IBM Secure Engineering Web Portal](<http://www.ibm.com/security/secure-engineering/bulletins.html>) [IBM Product Security Incident Response Blog](<http://www.ibm.com/blogs/psirt>) ## Change History September 27, 2019: 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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions. ## Internal Use Only Advisory ID: 10872 Product Record ID: 109601 RTC Defect 239863 [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSM8NY","label":"PureApplication System"},"Component":"Security","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.2.6 2.2.5.3;2.2.5.2;2.2.5.1;2.2.5.0;2.2.4.0;2.2.3.2;2.2.3.1;2.2.3.0;2.2.2.2;2.2.2.1;2.2.2.0","Edition":"All editions","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFQSV","label":"IBM Cloud Pak System Software"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.3.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]


Affected Software


CPE Name Name Version
pureapplication system 2.2.6
pureapplication system 2.2.5.3
pureapplication system 2.2.5.2
pureapplication system 2.2.5.1
pureapplication system 2.2.5.0
pureapplication system 2.2.4.0
pureapplication system 2.2.3.2
pureapplication system 2.2.3.1
pureapplication system 2.2.3.0
pureapplication system 2.2.2.2
pureapplication system 2.2.2.1
pureapplication system 2.2.2.0
ibm cloud pak system software 2.3.0

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