Security Bulletin: A format string security vulnerability has been identified in IBM Spectrum Scale (CVE-2021-29740)

Security Bulletin

Summary

A security vulnerability has been identified in IBM Spectrum Scale file system that could allow an attacker to execute arbirtary code. A fix for this vulnerability is available.

Vulnerability Details

CVEID: CVE-2021-29740
DESCRIPTION: IBM Spectrum Scalefile system core component is affected by a format string security vulnerability. An attacker could execute arbitrary code in the context of process memory, potentially escalating their system privileges and taking control over the entire system with root access.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/201474 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Spectrum Scale	5.0.0 - 5.0.5.6
IBM Spectrum Scale	5.1.0 - 5.1.0.3

Remediation/Fixes

For IBM Spectrum Scale V5.1.0 through V5.1.0.3, apply V5.1.1.0 or later available from FixCentral at:

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.1.0&platform=All&function=all

For IBM Spectrum Scale V5.0.0 through V5.0.5.6, apply V5.0.5.7 or later 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

If you cannot apply the above PTF level, contact IBM service to obtain and apply efix for your code level(s):

For IBM Spectrum Scale V5.1.0 through V5.1.0.3, reference IJ32754
For IBM Spectrum Scale V5.0.0 through V5.0.5.6, reference IJ31853

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

Change History

13 May 2021: 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

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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Tips

Security Bulletin: A format string security vulnerability has been identified in IBM Spectrum Scale (CVE-2021-29740)