Novell NetBasic Scripting Handler (NSN) interpreter buffer overflow

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

Description:

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.


Consequences:

Denial of Service

Remedy:

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

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

Reported:

Aug 20, 2002

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