Buffer overflow in TNS Listener for Oracle 9i Database Server on Windows systems, and Oracle 8 on VM, allows local users to execute arbitrary code via a long SERVICE_NAME parameter, which is not properly handled when writing an error message to a log file.
SQL*NET listener for Oracle Net Oracle9i 9.0.x and 9.2 allows remote attackers to cause a denial of service (crash) via certain debug requests that are not properly handled by the debugging feature.