This bug was fixed in the package lxc - 1.1.5-0ubuntu0.15.04.4
--------------- lxc (1.1.5-0ubuntu0.15.04.4) vivid-security; urgency=medium
* SECURITY UPDATE: Escape through ptrace and inherited fd (LP: #1639345) - attach: Do not send procfd to attached process - CVE-2016-8649
-- Stéphane Graber <email address hidden> Tue, 22 Nov 2016 00:49:00 -0500
This bug was fixed in the package lxc - 1.1.5-0ubuntu0. 15.04.4
--------------- 0ubuntu0. 15.04.4) vivid-security; urgency=medium
lxc (1.1.5-
* SECURITY UPDATE: Escape through ptrace and inherited fd (LP: #1639345)
- attach: Do not send procfd to attached process
- CVE-2016-8649
-- Stéphane Graber <email address hidden> Tue, 22 Nov 2016 00:49:00 -0500