1st Up Mail Server v4.1 Buffer Overflow Vulnerability

[USSR Labs <labs () USSRBACK COM>]

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1st Up Mail Server v4.1 Buffer Overflow Vulnerability

USSR Advisory Code:  USSR-2000058

Public Disclosure Date:
December 25, 2000

Vendors Affected:
Upland Ltd
http://www.upland.co.uk/

Systems Affected:
1st Up Mail Server v4.1

Problem:
The Ussr Team has recently discovered a Buffer Overflow in 1st Up
Mail Server v4.1 where they do not use proper bounds checking.
The overflow is in the field "mail from: <", a large number
of aaaaaa's "> (over 300). It then displays this message:

"Application popup: smtp server: smtp server.exe - Application Error
: The instruction at "0x00402f23" referenced memory at "0x61616161".
The memory could not be "read".

Click on OK to terminate the program
Click on CANCEL to debug the program "

This results in a Denial of Service against the service
in question.

Vendor Status:
Informed
Contacted
Patch Available

Fix:
Upgrade to version 1st Up Mail Server 4.1.4e

http://www.upland.co.uk/1stup/UpMailSetUp.EXE

Related Links:

Underground Security Systems Research:
http://www.ussrback.com

CrunchSp Product:
http://www.crunchsp.com

About:

USSR is an emerging security company based in South America.
We are devoted to network security research, vulnerability research,
and software protection systems. One of the main objectives of USSR
is to develop and implement cutting edge security and protection
systems
that cater to an evolving market.

We believe that the way we implement security solutions can make a
difference. CrunchSP is an example, providing a solution to software
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On a daily basis, we research, develop, discover and report
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programmers, as well as programmers of partners and affiliates, are
seasoned professionals, with 12 or more years of industry experience.
 A
knowledge base of numerous computer applications as well as many high
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Copyright (c) 1999-2000 Underground Security Systems Research.
Permission is hereby granted for the redistribution of this alert
electronically. It is not to be edited in any way without explicit
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alert in any other medium excluding electronic medium, please e-mail
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Disclaimer:
The information within this paper may change without notice. We may
not be held responsible for the use and/or potential effects of these
programs or advisories.  Use them and read them at your own risk or
not at all. You solely are responsible for this judgment.

Feedback:

If you have any questions, comments, concerns, updates, or
suggestions please feel free to send them to:

Underground Security Systems Research
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http://www.ussrback.com

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