On Tuesday, we [The Register] warned that a blueprint blunder in Intel’s CPUs could allow applications, malware, and JavaScript running in web browsers, to obtain information they should not be allowed to access: the contents of the operating system kernel’s private memory areas. These zones often contain files cached from disk, a view onto the machine’s entire physical memory, and other secrets. This should be invisible to normal programs.
Thanks to Intel’s cockup – now codenamed Meltdown – that data is potentially accessible, meaning bad websites and malware can attempt to rifle through the computer’s memory looking for credentials, RNG seeds, personal information, and more…