http://www.vupen.com/english/advisories/2009/0541
https://issues.apache.org/bugzilla/show_bug.cgi?id=40771
http://www.securityfocus.com/bid/33913
http://www.securityfocus.com/archive/1/501250
http://secunia.com/advisories/34057
http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000010.html
http://jvn.jp/en/jp/JVN66905322/index.html