1、查看源版本

openssl version -a
# OpenSSL 1.0.1e

2、更新zlib

wget http://zlib.net/zlib-1.2.11.tar.gz
tar xzf zlib-1.2.11.tar.gz
cd zlib-1.2.11
./configure
make && make install

或者yum安装

yum install -y zlib

3、下载openssl-1.0.2h.tar.gz

wget https://www.openssl.org/source/openssl-1.0.2h.tar.gz

4、解压安装

tar zxf openssl-1.0.2h.tar.gz
cd openssl-1.0.2h
./config shared zlib
make
make install
mv /usr/bin/openssl /usr/bin/openssl.bak
mv /usr/include/openssl /usr/include/openssl.bak
ln -s /usr/local/ssl/bin/openssl /usr/bin/openssl
ln -s /usr/local/ssl/include/openssl /usr/include/openssl
echo “/usr/local/ssl/lib” >> /etc/ld.so.conf
ldconfig -v

5、查看是否升级成功

openssl version -a
# OpenSSL 1.0.2h  3 May 2016