1st Up Mail Server v4.1 Buffer Overflow Vulnerability

 
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

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