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Security Bulletin: IBM Guardium Data Encryption is vulnerable to missing data encoding issue (CVE-2021-39027)

Security Bulletin


A vulnerability was identified in IBM Guardium Data Encryption (GDE). Please apply the latest version for the fixes.

Vulnerability Details

CVEID:   CVE-2021-39027
DESCRIPTION:   IBM Guardium Data Encryption (GDE) prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.
CVSS Base score: 3
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N)

Affected Products and Versions

Product Name Component Name Affected Version 
IBM Guardium Data Encryption (GDE)CipherTrust Tokenization Server (CT-VL)CT-VL


IBM encourages customers to promptly update their systems.

Obtain the fixes using the link below.
Note: In order to get the fix, customer needs to login to Thales portal.

Component NameFixed in versionPatch/Upgrade link
CipherTrust Tokenization Server (CT-VL)

Workarounds and Mitigations


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John Zuccato, Rodney Ryan, Chris Shepherd, Nathan Roane, Vince Dragnea, Troy Fisher, Gabor Minyo, Geoffrey Owden, and Ben Goodspeed from the IBM X-Force Ethical Hacking Team.

Change History

04 May 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.


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":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSSPPK","label":"IBM Security Guardium Data Encryption"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"4.0.0.x, 5.0.0.x","Edition":"","Line of Business":{"code":"LOB24","label":"Security Software"}}]

Document Information

Modified date:
05 May 2022