Today I modified the Inguma PL/SQL Fuzzer a little bit (adding my own enhancements) and run it against 10.2.0.3 with Oracle Critical Patch Update (CPU) October 2007 applied. After running it for a while (without a database crash) Oracle reported the following errors messages in trace files:

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ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_kghuclientasp+118] [PC:0×603D67AE] [ADDR:0×9253768] [UNABLE_TO_READ] []
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_kxsdcbc+205] [PC:0×8A7911] [ADDR:0×18] [UNABLE_TO_READ] []
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_kxsdcbc+123] [PC:0×8A78BF] [ADDR:0×18] [UNABLE_TO_READ] []
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_qmuhshget_internal+228] [PC:0×605738A8] [ADDR:0×6474636B] [UNABLE_TO_READ] []
ORA-00600: internal error code, arguments: [kohcpi298], [], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [KGHALO2], [0×0], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [qmsVarrayElemtds:pd or extra tmx], [], [], [], [], [], [], []
oracle.jdbc.driver.OracleSQLException: ORA-00933: SQL command not properly ended
oracle.jdbc.driver.OracleSQLException: ORA-01742: comment not terminated properly
oracle.jdbc.driver.OracleSQLException: ORA-01756: quoted string not properly terminated
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Some of the error messages are indication (just indication) for SQL Injection and buffer overflows. I will investigate…