Serious security hole in oracle 8i

hi,
is anyone aware of the following and where the patches are (ftp server directory) to fix the problem for oracle on netware.

6) Oracle 8i Vulnerability  

A vulnerability in Oracle 8i allows remote intruders to assume control of database servers running on victim machines. If the Oracle server is running on a Windows system, an intruder may also be able to gain control of the underlying operating system.

The COVERT labs at PGP Security have discovered a buffer overflow vulnerability in Oracle 8i that allows intruders to execute arbitrary code with the privileges of the TNS listener process.

The vulnerability occurs in a section of code that is executed prior to authentication, so an intruder does not require a username or password.

An intruder who exploits the vulnerability can remotely execute arbitrary code. On UNIX systems, this code runs as the 'oracle' user. If running on Windows systems, the intruder's code will run in the Local System security context.

In either case, the attacker can gain control of the database server on the victim machine. On Windows systems, the intruder can also gain administrative control of the operating system. More information is available in   

http://otn.oracle.com/deploy/security/pdf/nai_net8_bof.pdf