Buffer overflow in extproc in Oracle 10g allows remote attackers to execute arbitrary code via environment variables in the library name, which are expanded after the length check is performed.

Extproc in Oracle 9i and 10g does not require authentication to load a library or execute a function, which allows local users to execute arbitrary commands as the Oracle user.

Multiple SQL injection vulnerabilities in PL/SQL procedures that run with definer rights in Oracle 9i and 10g allow remote attackers to execute arbitrary SQL commands and gain privileges via (1) DBMS_EXPORT_EXTENSION, (2) WK_ACL.GET_ACL, (3) WK_ACL.STORE_ACL, (4) WK_ADM.COMPLETE_ACL_SNAPSHOT, (5) WK_ACL.DELETE_ACLS_WITH_STATEMENT, or (6) DRILOAD.VALIDATE_STMT.

The (1) dbsnmp and (2) nmo programs in Oracle 8i, Oracle 9i, and Oracle IAS 9.0.2.0.1, on Unix systems, use a default path to find and execute library files while operating at raised privileges, which allows certain Oracle user accounts to gain root privileges via a modified libclntsh.so.9.0.