IBM Db2 Denial-of-Service Vulnerability

A denial-of-service vulnerability has been identified in IBM Db2 for Linux, UNIX, and Windows, including Db2 Connect Server, versions 11.5.0 prior to 11.5.9 and 12.1.0 prior to 12.1.1. Under certain conditions, the server may crash when processing a specially crafted query.

Impact

Exploitation of this vulnerability can lead to a server crash, causing a denial-of-service condition.

Remediation

Users can download a special build containing the interim fix for this issue from Fix Central. For Db2 version 11.5, the special build #58840 or later is available. For Db2 version 12.1, the special build #59885 or later can be downloaded. These special builds can be applied to any affected mod pack level of the appropriate release.