Vulnerability for 8.2.3

[base60]

> I am the beginner for bind dns, i am reviewing my company bind dns. the
> verison is
> bash-2.03# named -v
> named 8.2.3-REL Mon Jan 29 18:30:04 EST 2001

The current version of BIND8 is 8.4.6

> 
> i would like to fix some vulnerabilities for bind dns,
> do you know where can i download the patch for 8.2.3?
> If no, how can i uprade to latest version?

http://www.isc.org