Unspecified vulnerability in Oracle Spatial component in Oracle Database 9.0.1.5, 9.2.0.6, and 10.1.0.3 has unknown impact and remote authenticated attack vectors related to mdsys.sdo_tune, aka Vuln# DB18.  NOTE: as of 20061023, Oracle has not disputed reports from reliable third parties that DB18 might be related to SQL injection in the EXTENT_OF function.