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Security Bulletin: A vulnerability has been identified in IBM Spectrum Scale where an unprivileged user to cause denial of service (CVE-2020-4492)

Security Bulletin


Summary

A security vulnerability has been identified in all levels of IBM Spectrum Scale that could allow a local attacker to cause a denial of service. A fix for this vulnerability is available.

Vulnerability Details

CVEID:   CVE-2020-4492
DESCRIPTION:   IBM Spectrum Scale could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181992 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM Spectrum Scale V5.0.0.0 through V5.0.4.3

IBM Spectrum Scale V4.2.0.0 through V4.2.3.21


Remediation/Fixes

For IBM Spectrum Scale V5.0.0.0 through 5.0.4.3, apply V5.0.4.4 or V5.0.5 available from FixCentral at:

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.0.5&platform=All&function=all


For IBM Spectrum Scale V4.2.0.0 thru V4.2.3.21, apply V4.2.3.22 available from FixCentral at:

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=4.2.3&platform=All&function=all

If you cannot apply the latest level of service, contact IBM Service for an efix:

  • For IBM Spectrum Scale V5.0.0.0 thru V5.0.4.3, reference APAR IJ23784
  • For IBM Spectrum Scale V4.2.0.0 thru V4.2.3.21, reference APAR IJ23757

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

04 Aug 2020: Initial Publication

*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

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Document Information

Modified date:
28 August 2020

UID

ibm16324249