IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, and 5.3 could allow an authenticated user to bypass client-side validation and manipulate input data using man in the middle techniques.
IBM strongly recommends addressing the vulnerabilities now by upgrading to the latest IBM Db2® on Cloud Pak for Data and Db2 Warehouse® on Cloud Pak for Data release containing the fix for these issues i.e to version 5.4. Please note: If the affected release is any refresh level of Cloud Pak for Data 4.8, 5.0, 5.1, 5.2, 5.2.2, 5.3.0 it is strongly recommended to upgrade to Cloud Pak for Data 5.4.
ProductFixed in Fix Pack
Instructions
IBM® Db2® on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data
v5.4
Db2 Warehouse: https://www.ibm.com/docs/en/software-hub/5.3.x?topic=warehouse-upgrading
Db2: https://www.ibm.com/docs/en/software-hub/5.3.x?topic=db2-upgrading