https://www.exploit-db.com/exploits/21644
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200212-840

InternetMessageAccessProtocol(IMAP)dated2002RC2之前版本c-client库存在漏洞，如Pine4.20到4.44版本使用的。远程攻击者借助包含空边界字段Content-Type头的MIME编码邮件导致服务拒绝（客户端程序崩溃）。

source: http://www.securityfocus.com/bid/5301/info

Pine is an open source mail user agent distributed by the University of Washington. It is freely available for Unix, Linux, and Microsoft Operating Systems.

When a mail is received by pine that contains MIME content, and the value of the MIME boundary is blank, pine becomes unstable. This vulnerability has been discovered to cause a core dump in the pine client, and could be used to deny service to legitimate users of the client.

Sending an email to a pine user containing MIME content with the following fields set as specified will cause the crash:

Content-Type: multipart/mixed; boundary=""
Mime-Version: 1.0

来源:XF
名称:pine-blank-boundary-dos(9668)
链接:http://www.iss.net/security_center/static/9668.php
来源:BID
名称:5301
链接:http://www.securityfocus.com/bid/5301
来源:BUGTRAQ
名称:20020724DenialofServicebuginPine4.44
链接:http://online.securityfocus.com/archive/1/284086