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How to upgrade OpenSSL 0.9.7.a to OpenSSL 0.9.81: RedHat 9.0, with Surgemail Linux 4.2a3-3.


I have a critical problem on my email server. Our firewall is sending me belowing log message.

It says: Your mail server is impacted Denial of service Possible arbitrary code execution, affected product is OpenSSL 0.9.7. Have to upgrade.

Now, I need to upgrade openssl 0.9.7a to Openssl 0.9.81 version. But I dont know how to do it. I afraid if I upgrade this how affect to mail service of mail server.
Mail server is a Surgemail. We are using mirror server.
Mail servers certificate installed is a self-signed cert. MD5
I dont want to lost mail servers configuration or server stuck.

How to do, please give me suggestion and procedure?

Thank you in advance.
1 Solution
amaraa12Author Commented:
How to use ssl-plus cert. how to configure on the red hat with surgemail.

Which linux OS do you have?
Some vendor Redhat/centos maintain the version while patching the security issues.  The notice is just informational.  Once you make sure that the openssl 0.9.7.x is patched, you can ignore those alerts.

The upgrade is simple enough, get the openssl source from www.openssl.org and configure/compile/install it.
The pitfalls however deal with whether the applications you have that use the openssl will continue to function with the newer version.
Some application had openssl statically compiled such that an install of the new version will not do a thing to secure/fix the issue.
ldd /path/to/mail_server_binary
If libssl is not part of the listing, that would mean that openssl is statically compiled and you would need to update the mail application.  i.e. recompile it with either the updated openssl 0.9.8 or the patched version 0.9.7.x

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