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Category:   Application (E-mail Server)  >   Novell NetMail Vendors:   Novell
Novell NetMail Buffer Overflow in 'NMDMC.EXE' Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018045
SecurityTracker URL:
CVE Reference:   CVE-2007-2616   (Links to External Site)
Updated:  May 12 2008
Original Entry Date:  May 10 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.52e_FTF2
Description:   A vulnerability was reported in Novell NetMail. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data via SSL to the 'NMDMC.EXE' service to trigger a stack overflow and execute arbitrary code on the target system. The code will run with the privileges of the target 'NetMailService' service.

The vendor was notified on February 7, 2007.

iDefense reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fixed version (3.52f), available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error

Message History:   None.

 Source Message Contents

Subject:  iDefense Security Advisory 05.10.07: Novell NetMail NMDMC Buffer

Novell NetMail NMDMC Buffer Overflow Vulnerability

iDefense Security Advisory 05.10.07
May 10, 2007


Novell Inc.'s NetMail is an e-mail and calendar system that is based on
standard Internet protocols. More information can be found at the URL
shown below.


Remote exploitation of a buffer overflow vulnerability within Novell
Inc.'s NetMail allows attackers to execute arbitrary code with the
privileges of the service.

This vulnerability specifically exists within the SSL version of the
"NMDMC.EXE" service. The application does not perform sufficient input
validation when copying data into a fixed size stack buffer. When
processing a specially crafted request made to this service, a
stack-based buffer overflow occurs leading to corruption of program
control registers saved on the stack.


Exploitation allows attackers to execute code in the context of the
running service. By default this service runs with the privileges of

No authentication is required to reach the vulnerable code.
Additionally, this is an SSL based service which complicates writing
IDS signatures.

It appears that the non-SSL version of this service is not vulnerable.


iDefense has confirmed the existence of this vulnerability within
version 3.52e_FTF2 of Novell Inc's NetMail. Older versions are
suspected to be vulnerable.


Employ firewalls to minimize the exposure of this service.


Novell has addressed this vulnerability in the beta release of Novell
NetMail 3.52f. For more information, consult the document located at
the following URL.


A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.


02/07/2007  Initial vendor notification
02/08/2007  Initial vendor response
05/10/2007  Public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
 There are no warranties with regard to this information. Neither the
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