IBM Db2 12.1.0 through 12.1.3 for Linux, UNIX and Windows (includes Db2 Connect Server) under specific configurations could allow a local user to execute malicious code that escalate their privileges to root due to execution of unnecessary privileges operated at a higher than minimum level.
The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.