Advisory Details

February 7th, 2011

Novell eDirectory Malformed NCP Request Denial of Service Vulnerability

CVE ID	CVE-2010-4327
CVSS SCORE	9.0, AV:N/AC:L/Au:N/C:P/I:P/A:C
AFFECTED VENDORS	Novell
AFFECTED PRODUCTS	eDirectory
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['8275']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows attackers to deny services on vulnerable installations of Novell eDirectory. Authentication is not required in order to trigger this vulnerability. The flaw exists within Novell's eDirectory Server's NCP implementation. Novell's eDirectory Server binds to port 524 for processing NCP requests. When the application processes a malformed FileSetLock request, the service will become unresponsive resulting in an inability to authenticate to that server.
ADDITIONAL DETAILS	Novell has issued an update to correct this vulnerability. More details can be found at: http://www.novell.com/support/viewContent.do?externalId=7007781&sliceId=2
DISCLOSURE TIMELINE	2009-03-26 - Vulnerability reported to vendor 2011-02-07 - Coordinated public release of advisory
CREDIT	1c239c43f521145fa8385d64a9c32243

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