ZDI-06-052: Novell NetMail NMAP STOR Buffer Overflow Vulnerability Dec 23 2006 12:11AM
zdi-disclosures 3com com
ZDI-06-052: Novell NetMail NMAP STOR Buffer Overflow Vulnerability
December 22, 2006

-- CVE ID:

-- Affected Vendor:

-- Affected Products:
Novell NetMail 3.5.2

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since September 14, 2006 by Digital Vaccine protection
filter ID 3902. For further product information on the TippingPoint IPS:


-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
affected installations of Novell NetMail. Successful exploitation
requires the attacker to successfully authenticate to the affected

The specific flaw exists in NetMail's implementation of the Network
Messaging Application Protocol (NMAP). The NMAP server lacks bounds
checking on parameters supplied to the STOR command, which can lead to
an exploitable buffer overflow. The vulnerable daemon, nmapd.exe, binds
to TCP port 689.

-- Vendor Response:
Novell has issued an update to correct this vulnerability. More details
can be found at:


-- Disclosure Timeline:
2006.09.08 - Vulnerability reported to vendor
2006.09.14 - Digital Vaccine released to TippingPoint customers
2006.12.22 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Dennis Rand - CIRT.DK.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:


The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

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