[NT] NGC Active Mail Server Multiple Buffer Overflows (HELO, MAIL FROM, and RCPT TO)

From: SecuriTeam (support_at_securiteam.com)
Date: 06/23/03

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Date: 23 Jun 2003 11:05:09 +0200

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      NGC Active Mail Server Multiple Buffer Overflows (HELO, MAIL FROM, and
    RCPT TO)
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.nextgen.dk/> NGC Active Mail server 2002 is "a POP3 Mail
    server for personal use". The product has been found to contain multiple
    buffer overflow vulnerabilities, these vulnerabilities allow remote
    attackers to cause the server to crash.

    DETAILS

    Vulnerable systems:
     * NGC Active Mail server 2002

    Any remote attacker can bring the NGC Active Mail server down by sending a
    large amount of data with the HELO, MAIL FROM and RCPT TO commands. The
    data size needs to be at least 33k characters.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:vulncode@yahoo.com> Ziv
    Kamir.

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