IBM Support

Security Bulletin: A vulnerability in IBM Spectrum Scale allows to inject malicious content into log files (CVE-2020-4851)

Security Bulletin


A security vulnerability has been identified in all levels of IBM Spectrum Scale HDFS Transparency that could allow a local attacker to inject malicious content into log files. A fix for this vulnerability is available.

Vulnerability Details

CVEID:   CVE-2020-4851
DESCRIPTION:   IBM Spectrum Scale could allow a local user to poison log files which could impact support and development efforts.
CVSS Base score: 4
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Spectrum Scale 5.0.0 - (HDFS Transparency version - 3.1.0)
IBM Spectrum Scale5.1.0 - (HDFS Transparency version - 3.1.0)


For IBM Spectrum Scale V5.0.0 through, apply V5.0.5.5 (HDFS Transparency V3.1.0-7) or later available from FixCentral at:

For IBM Spectrum Scale V5.1.0.0 - V5.1.0.1, apply V5.1.0.2 (HDFS Transparency V3.1.0-7) or later available from FixCentral at:

If you cannot apply the latest level of service, contact IBM Service.

Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

18 Jan 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.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location


[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STXKQY","label":"IBM Spectrum Scale"},"Component":"","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF002","label":"AIX"}],"Version":"5.1,5.0","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
15 March 2021