TippingPoint Zero Day Initiative

Novell NetStorage xsrvd Long Pathname Remote Code Execution Vulnerability

ZDI-10-021: February 23rd, 2010

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9290. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell NetStorage. Authentication is not required to exploit this vulnerability.

The specific flaws exists within the xsrvd process during the wide character conversion of requested file paths. In conjunction with a long username value the file path conversion will result in a heap overflow corrupting a chunk that will be immediately freed. This can be leveraged by remote attackers to compromise the NetStorage server.

Vendor Response

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

Disclosure Timeline

    2009-10-21 - Vulnerability reported to vendor
    2010-02-23 - Coordinated public release of advisory


This vulnerability was discovered by: