Ubuntu, Google, Red Hat, and other open source solutions providers have patched a critical vulnerability in the GNU C Library that has been around for years. The vulnerability affects the glibc and eglibc packages in Ubuntu 15.10, 14.04 LTS, and 12.04. The flaw affects all versions of Glibc 2.9, meaning that the vulnerability has been reported since 2008. Attackers have had eight years to find and abuse the bug for a multitude of nefarious purposes.”]
Source: https://grahamcluley.com/years-old-critical-gnu-library-vulnerability-patched-open-source-providers/