ZDI-07-072: Novell NetMail AntiVirus Agent Multiple Heap Overflow 
Vulnerabilities
http://www.zerodayinitiative.com/advisories/ZDI-07-072.html
December 10, 2007

-- CVE ID:
CVE-2007-6302

-- Affected Vendor:
Novell

-- Affected Products:
NetMail 3.5.2

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5219, 5225. 
For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
These vulnerabilities allow attackers to execute arbitrary code on
vulnerable installations of Novell NetMail. User interaction is not
required to exploit this vulnerability.

The specific flaws exist in the AntiVirus agent which listens on a
random high TCP port. The avirus.exe service protocol reads a
user-supplied ASCII integer value as an argument to a memory allocation
routine. The specified size is added to without any integer overflow
checks and can therefore result in an under allocation. A subsequent
memory copy operation can then corrupt the heap and eventually result
in arbitrary code execution.

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

https://secure-support.novell.com/KanisaPlatform/Publishing/990/3639135_f.SAL_Public.html

-- Disclosure Timeline:
2007.02.16 - Vulnerability reported to vendor
2007.12.10 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Tenable Network Security.

-- About the Zero Day Initiative (ZDI):
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