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Category:   Application (E-mail Server)  >   QK SMTP Server Vendors:   QKsoft
QK SMTP Server 'RCPT TO' Command Lets Remote Users Deny Service
SecurityTracker Alert ID:  1017114
SecurityTracker URL:
CVE Reference:   CVE-2006-5551   (Links to External Site)
Updated:  Jun 2 2008
Original Entry Date:  Oct 25 2006
Impact:   Denial of service via network
Exploit Included:  Yes  
Version(s): 3.01 and prior versions
Description:   A vulnerability was reported in QK SMTP Server. A remote user can cause denial of service conditions.

A remote user can send a specially crafted RCPT TO command to trigger a format string flaw and cause the target service to crash.

It may be possible to execute arbitrary code [however, the report did not confirm remote code execution].

A demonstration exploit is available at:

Greg Linares reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.
Solution:   No solution was available at the time of this entry.

[Editor's note: A third party has reported that version 3.1 Beta is not vulnerable. However, the vendor's web site does not acknowledge this.]

Vendor URL: (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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