I think this must be related with CSCsu44598 Bug, we have to downgrade to 8.0.3 for solving this
Details
SQLNet inspection closes flow
Symptom:
Issue with SQLNet access
Conditions:
Issue is seen with ASA 8.0(4) with SQLNet inspection enabled. Inspection
denies CLOB data field size of greater than 4KB. The following log messages
are seen on the ASA:
%ASA-6-302014: Teardown TCP connection...Flow closed by inspection
When enabling 'debug sqlnet 255 ', you may also see the following debug message:
SQLNet: multiple TNS frames in one packet!
Workarounds:
1) Disable SQLNet inspection
2) Downgrade to a version prior to 8.0.3.33
Further Problem Description:
This bug was introduced due to the integration of CSCsr27940 in version
8.0.3.33 and 7.2.4.15. Versions prior to these release should not be affected.