In this time, we all are aware about the new Open SSL Heartbleed vulnerability. The Heartbleed bug allows anyone on the Internet to read the memory of the systems protected by the vulnerable versions of the OpenSSL software. You will get more details from this link Heartbleed. The open SSL version 1.0.1 version has vulnerabilities except 1.0.1g and other versions. Different communities are already released updates. How to check if the Open SSL installed is patched or not ? You can find this by different method. This link will help you to find out your domain’s Open SSL status, Test Vulnerability. You can check the same from the server. The following OS may effected the Heartbleed Vulnerabilities.