Novell NetBasic Scripting Handler (NSN) interpreter buffer overflow

novell-netbasic-interpreter-bo (9911) The risk level is classified as LowLow Risk


NetBasic Scripting Handler (NSN) is vulnerable to a denial of service attack, caused by a buffer overflow in the NetBasic Interpreter. By sending a specially-crafted URL request containing an overly long module name, a remote attacker could overflow a buffer and cause the server to crash. The server must be restarted to regain normal functionality.


Denial of Service


Apply the patch for this vulnerability, as listed in Novell Technical Information Document 2963297. See References.


  • Novell Security Alert NOVL-2002-2963297: NetBasic Buffer Overflow + Scripting Vulnerability. (From Neohapsis archive)
  • Novell Technical Information Document 2963297: NetBasic buffer/scripting vulnerabiltiy patch.
  • BID-5524: Novell NetBasic Interpreter Module Name Buffer Overflow Vulnerability
  • CVE-2002-1418: Buffer overflow in the interpreter for Novell NetBasic Scripting Server (NSN) for Netware 5.1 and 6, and Novell Small Business Suite 5.1 and 6, allows remote attackers to cause a denial of service (ABEND) via a long module name.
  • OSVDB ID: 10929: Novell NetBasic Scripting Server Long Module Name Overflow DoS

Platforms Affected:

  • Novell NetWare 5.1
  • Novell NetWare 6.0
  • Novell Small Business Suite 5.1
  • Novell Small Business Suite 6.0


Aug 20, 2002

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