A highly critical vulnerability has been uncovered in the, a key component of most Linux distributions, that leaves nearly all Linux machines, vulnerable to hackers that can take full control over them. The vulnerability is a stack-based buffer overflow vulnerability in glibc’s DNS client-side resolver that is used to translate human-readable domain names, like google.com, into a network IP address. The bug is triggered when the getaddrinfo() library function that performs domain-name lookups is in use, allowing hackers to remotely execute.
Source: https://thehackernews.com/2016/02/glibc-linux-flaw.html