1st Up mail sever 缓冲区溢出

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1st Up 邮件服务器是为在小-中型网络中发展的. 缓冲区溢出存在于1st Up 邮件服务v.4.1, 它允许恶意攻击者运行任意代码. 缓冲区溢出在当大数目字符(>300)填入"mail from:<"区

如何修正:
Upgrade to version 1st Up Mail Server 4.1.4e
http://www.upland.co.uk/1stup/UpMailSetUp.EXE