As you may be aware, a recent discovery with the OpenSSL cryptographic software library exposed a bug which compromises the secret keys used to encrypt
communication. This bug has the potential of exposing the names and passwords of users, along with actual data content.
To prevent this, you have to apply and update some packages depending on the architecture you are using:
Oracle Linux 6 (i386)
openssl-1.0.1e-16.el6_5.7.src.rpm
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-perl-1.0.1e-16.el6_5.7.i686.rpm
openssl-static-1.0.1e-16.el6_5.7.i686.rpm
Oracle Linux 6 (x86_64)
openssl-1.0.1e-16.el6_5.7.src.rpm
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-perl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-static-1.0.1e-16.el6_5.7.x86_64.rpm
Also don't forget to restart the ssh daemon (sshd) after a successful update/install as well.
Regards,
János