$ openssl version
OpenSSL 1.0.1e-fips 11 Feb 2013

$ yum list |grep openssl
openssl.x86_64 1.0.1e-16.el6_5.4 @updates
krb5-pkinit-openssl.x86_64 1.10.3-15.el6_5.1 updates
openssl.i686 1.0.1e-16.el6_5.15 updates
openssl.x86_64 1.0.1e-16.el6_5.15 updates
openssl-devel.i686 1.0.1e-16.el6_5.15 updates
openssl-devel.x86_64 1.0.1e-16.el6_5.15 updates
openssl-perl.x86_64 1.0.1e-16.el6_5.15 updates
openssl-static.x86_64 1.0.1e-16.el6_5.15 updates
openssl098e.i686 0.9.8e-18.el6_5.2 updates
openssl098e.x86_64 0.9.8e-18.el6_5.2 updates

$ yum update openssl

$ openssl version
openssl.x86_64 1.0.1e-16.el6_5.15

$ grep libssl.so /proc/*/maps | grep ‘(deleted)$‘ | cut -d/ -f3 | sort -u | xargs -r -- ps u #### This will show any applications holding a file open for openssl version

# then restart those processes

update openssl on redhat/centos