[CentOS] centos 4.6 and openssl

Hi, 

I was compiling a new version of bind on my centos 4.6 server and I
discovered that the openssl version (openssl-0.9.7a-43.17.el4_6.1) has
several exploits associated with it.
I was wondering aside from removing the RPM and compiling a new version of
openssl how can I upgrade my current openssl-0.9.7a-43.17.el4_6.1 to a newer
version that is affected by the exploits. 
I know I can yum update openssl as that's is the last version for openssl
for version 4. 

What can I do upgrade openssl? 
Is it possible to update the server from 4.6 to 5?, is this something that I
want to do or is there a better way?


TIA, Paul
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