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Security Bulletin: IBM Cloud Pak System is vulnerable to Intel Microarchitectural Data Sampling (MDS) Vulnerabilites

Description

## Summary Potential security vulnerabilities in CPUs may allow information disclosure. ## Vulnerability Details **CVEID: **[CVE-2019-11091](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11091>) **DESCRIPTION: **Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf CVSS Base score: 3.8 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/160993](<https://exchange.xforce.ibmcloud.com/vulnerabilities/160993>) for the current score. 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: **Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf CVSS Base score: 6.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/160992](<https://exchange.xforce.ibmcloud.com/vulnerabilities/160992>) for the current score. 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: **Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf CVSS Base score: 6.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/160991](<https://exchange.xforce.ibmcloud.com/vulnerabilities/160991>) for the current score. 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: **Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf CVSS Base score: 6.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/160990](<https://exchange.xforce.ibmcloud.com/vulnerabilities/160990>) for the current score. 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 Affected Product(s) | Version(s) ---|--- IBM Cloud Pak System | 2.3, 2.3.0.1 ## Remediation/Fixes For IBM Cloud Pak System V2.3.0 and V2.3.0.1, upgrade to V2.3.1.1. Information on upgrading can be found here: [http://www.ibm.com/support/docview.wss?uid=ibm10887959.](<http://www.ibm.com/support/docview.wss?uid=ibm10887959>) ## Workarounds and Mitigations None ## 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 ## 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 02 December 2019: Initial Publication 27 December 2019: Updated Release version *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. ## Document Location Worldwide [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFQSV","label":"IBM Cloud Pak System Software"},"Component":"Microarchitectural","Platform":[{"code":"PF002","label":"AIX"}],"Version":"2.3, 2.3.0.1","Edition":"ALL","Line of Business":{"code":"LOB45","label":"Automation"}}]


Affected Software


CPE Name Name Version
ibm cloud pak system software 2.3
ibm cloud pak system software 2.3.0.1

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