[VulnWatch] ZDI-05-003: Novell NetMail IMAPD Buffer Overflows

From: zdi-disclosures@private
Date: Fri Nov 18 2005 - 10:04:55 PST

ZDI-05-003 - Novell NetMail IMAPD Buffer Overflows

November 18th, 2005

CVE ID: CAN-2005-3314 

Affected Vendor:
 - Novell

Affected Products:
 - Novell Netmail 3.5.2 

TippingPointTM IPS Customer Protection:
TippingPoint IPS customers have been protected against this vulnerability 
since October 24th, 2005 by Digital Vaccine protection filter ID 3868. For 
further product information on the TippingPoint IPS: 
Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on 
vulnerable installations of Novell Netmail. Authentication is required to 
exploit this vulnerability. 

This specific flaw exists within the IMAP daemon. A lack of bounds 
checking during the parsing of long verb arguments results in an 
exploitable stack-based overflow. 

Vendor Response:
"Novell has issued a update for the vulnerability(ies) and the update is 
available at:" 

Disclosure Timeline:
2005.10.24 – Vulnerability reported to vendor
2005.10.24 – Digital Vaccine released to TippingPoint customers
2005.11.17 – Vulnerability information provided to ZDI security partners
2005.11.18 – Coordinated public release of advisory

This vulnerability was discovered by Sebastian Apelt. 

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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