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Security Bulletin: IBM Sterling Connect:Direct for Microsoft Windows is vulnerable to multiple issues due to PostgreSQL

Security Bulletin


Summary

IBM Sterling Connect:Direct for Microsoft Windows has addressed multiple vulnerabilities within PostgreSQL (CVE-2025-12818 and CVE-2025-12817)

Vulnerability Details

CVEID:   CVE-2025-12818
DESCRIPTION:   Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes. This results in a segmentation fault for the application using libpq. Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.
CWE:   CWE-190: Integer Overflow or Wraparound
CVSS Source:   PostgreSQL
CVSS Base score:   5.9
CVSS Vector:   (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2025-12817
DESCRIPTION:   Missing authorization in PostgreSQL CREATE STATISTICS command allows a table owner to achieve denial of service against other CREATE STATISTICS users by creating in any schema. A later CREATE STATISTICS for the same name, from a user having the CREATE privilege, would then fail. Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected.
CWE:   CWE-862: Missing Authorization
CVSS Source:   PostgreSQL
CVSS Base score:   3.1
CVSS Vector:   (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Sterling Connect:Direct for Microsoft Windows6.2.0.0 - 6.2.0.8_iFix008
IBM Sterling Connect:Direct for Microsoft Windows 6.3.0.0 - 6.3.0.6_iFix019
IBM Sterling Connect:Direct for Microsoft Windows 6.4.0.0 - 6.4.0.3_iFix021

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by upgrading.

Affected Product(s)Version(s)Remediation / Fix
IBM Sterling Connect:Direct for Microsoft Windows 6.2.0.0 - 6.2.0.8_iFix008Apply 6.2.0.8_iFix009, available on Fix Central
IBM Sterling Connect:Direct for Microsoft Windows 6.3.0.0 - 6.3.0.6_iFix019Apply 6.3.0.6_iFix020, available on Fix Central
IBM Sterling Connect Direct for Microsoft Windows6.4.0.0 - 6.4.0.3_iFix021Apply 6.4.0.3_iFix022, available on Fix Central

For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

30 Dec 2026: 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
30 December 2025

UID

ibm17256010