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-2020-4412
DESCRIPTION: The Spectrum Scale file system component is affected by a denial of service security vulnerability. An attacker can force the Spectrum Scale mmfsd/mmsdrserv daemons to unexpectedly exit, impacting the functionality of the Spectrum Scale cluster and the availability of file systems managed by Spectrum Scale.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179987 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
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 available from FixCentral at:
https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.0.4&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:
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 IJ23789
- For IBM Spectrum Scale V4.2.0.0 thru V4.2.3.21, reference APAR IJ23785
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
18 May 2020: Final version 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.
Document Location
Worldwide
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Document Information
Modified date:
18 May 2020
UID
ibm16209004