ORA-31631 in windows bundle patch 33174380
In some circumstances, after installing 12c patch 33174380, calls to SYS.DBMS_DATAPUMP_EXPORT.OPEN fail with error:
ORA-31631: privileges are required
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 79
ORA-06512: at "SYS.DBMS_DATAPUMP", line 4932
ORA-06512: at "SYS.DBMS_DATAPUMP", line 6844
This is a known issue, (32481167:DATA EX-FILTRATION THROUGH UNAUTHORIZED DUMP FILE GENERATION) and there's even a released patch, added to the online README for 33174380 after my initial download, but I couldn't find any documentation of the exact symptoms. It took me way to long too track this down so I'm posting my symptom here.