Advisory Details

December 10th, 2007

Novell NetMail AntiVirus Agent Multiple Heap Overflow Vulnerabilities

ZDI-07-072
ZDI-CAN-162

CVE ID CVE-2007-6302
CVSS SCORE
AFFECTED VENDORS Novell
AFFECTED PRODUCTS NetMail
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are 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.

ADDITIONAL DETAILS Novell has issued an update to correct this vulnerability. More details can be found at:
Novell Document ID #3639135
DISCLOSURE TIMELINE
  • 2007-02-16 - Vulnerability reported to vendor
  • 2007-12-10 - Coordinated public release of advisory
CREDIT Tenable Network Security
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