Apr 11, 2014 · Anything running OpenSSL 1.0.1 through 1.0.1f is vulnerable to the Heartbleed threat. An advisory site called heartbleed.com designates these operating systems as being "potentially vulnerable":

SSL Server Test . This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet. Please note that the information you submit here is used only to provide you the service. We don't use the domain names or the test results, and we never will. Heartbleed bug: What you need to know (FAQ) - CNET Heartbleed is a security vulnerability in OpenSSL software that lets a hacker access the memory of data servers. According to Netcraft, an Internet research firm, 500,000 Web sites could be The Heartbleed vulnerability: how does it apply to you

SSL Port 443 – The Heartbleed Attack | Udemy Blog

Is your website affected with the HeartBleed SSL Bug

Late Monday, April 7th, 2014, a bug was disclosed in OpenSSL's implementation of the TLS heartbeat extension. The bug's official designation is CVE-2014-0160, it has also been dubbed Heartbleed in reference to the heartbeat extension it affects.

OpenSSL versions 1.0.1 through 1.0.1f contain a flaw in its implementation of the TLS/DTLS heartbeat functionality. This flaw allows an attacker to retrieve private memory of an application that uses the vulnerable OpenSSL library in chunks of 64k at a time.