The mysql-ocaml bindings 1.0.4 for MySQL do not properly support the mysql_real_escape_string function, which might allow remote attackers to leverage escaping issues involving multibyte character encodings.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-2929
http://www.mandriva.com/security/advisories?name=MDVSA-2009:279