CVE:CVE-2002-1077
CNNVD:CNNVD-200210-198
IPSwitch IMail Web Calendaring service (iwebcal)存在漏洞，远程攻击者借助不带Content-Length字段的HTTP POST请求导致服务拒绝（崩溃）。
solution:Upgrade ipswitch imail to a higher version than 6.1,6.2,6.3,6.4,7.0.1,7.0.2,7.0.3,7.0.4,7.0.5,7.0.6,7.0.7,7.1,and avoid the version 6.1,6.2,6.3,6.4,7.0.1,7.0.2,7.0.3,7.0.4,7.0.5,7.0.6,7.0.7,7.1