Advisory Details

December 22nd, 2006

Novell NetMail IMAP Verb Literal Heap Overflow Vulnerability

ZDI-06-053
ZDI-CAN-085

CVE ID CVE-2006-6424
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 4543. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected versions of Novell NetMail. Authentication is not required to exploit this vulnerability.

The specific flaw exists in the NetMail IMAP service, imapd.exe. The service does not sufficiently validate user-input length values when literals are appended to IMAP verbs to specify a command continuation request. The memory allocated to store the additional data may be insufficient, leading to an exploitable heap-based buffer overflow.

ADDITIONAL DETAILS Novell has issued an update to correct this vulnerability. More details can be found at:
Novell TID #3096026
DISCLOSURE TIMELINE
  • 2006-08-14 - Vulnerability reported to vendor
  • 2006-12-22 - Coordinated public release of advisory
CREDIT Anonymous
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