Ubuntu has patched a number of flaws affecting the Linux kernel, it is urging users to apply the patch if theyre running 14.04 LTS or any derivative builds. The list of bugs includes a use-after-free vulnerability ( CVE-2015-8812) and a timing side-channel vulnerability (CVE-2016-2085) A third vulnerability is caused by the failure in enforcing limits on data allocated to buffer pipes that wouldve exhausted resources.”]
Source: https://securityaffairs.co/wordpress/46071/breaking-news/ubuntu-patches-14-04-lts.html