由於Tomcat 5.5.20和Tomcat JK Connector 1.2.19-1.2.20有緩衝區溢位問題:
An unsafe memory copy in the URI handler for the native JK connector could result in a stack overflow condition which could be leveraged to execute arbitary code or crash the web server.
目前系統已更新至下列版本

Tomcat 5.5.23

Tomcat JK Connector 1.2.21
參考網址:
http://tomcat.apache.org/security-jk.html