gds_lock_mgr in Borland InterBase allows local users to overwrite files and gain privileges via a symlink attack on a "isc_init1.X" temporary file, as demonstrated by modifying the xinetdbd file.
Buffer overflow in Borland InterBase 6.0 allows local users to execute arbitrary code via a long INTERBASE environment variable when calling (1) gds_drop, (2) gds_lock_mgr, or (3) gds_inet_server.