It appears that Patchset 9206 introduced Bug 4015165 - REGRN:SCALAR VARCHAR2 IN BINDS WITH DIFFERENT SIZE RANDOMLY FAILS WITH ORA-06502.

From reading the Bug description, it appears to be related to PL/SQL web cartridges of the OAS. But I heard that it may also affect PL/SQL of other applications.

Has anyone experienced this bug outside of OAS, or in any of the PL/SQL - procedures, etc?