Security Bulletin: A vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2021-44142)

Security Bulletin

Summary

A Samba vulnerability affects IBM Spectrum Scale SMB protocol access method that could allow a remote authenticated attacker to execute arbitrary code on the system.

Vulnerability Details

CVEID: CVE-2021-44142
DESCRIPTION: Samba could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an out-of-bounds heap read write in the VFS module vfs_fruit. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code as root on the system.
CVSS Base score: 9.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/218420 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Spectrum Scale	5.0.0 - 5.0.5.13
IBM Spectrum Scale	5.1.0 - 5.1.3

Remediation/Fixes

For IBM Spectrum Scale V5.0.0.0 through V5.0.5.13, apply V5.0.5.14 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 V5.1.0 through V5.1.3, apply V5.1.3.1 or V5.1.2.3 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=5.1.3&platform=All&function=all

https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=Software%20defined%20storage&product=ibm/StorageSoftware/IBM+Spectrum+Scale&release=5.1.2&platform=All&function=all

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

Change History

28 Apr 2022: 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 vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2021-44142)