Ubuntu Security Notice USN-3375-1
2nd August, 2017
A security issue affects these releases of Ubuntu and its
- Ubuntu 14.04 LTS
LXC would allow unintended access.
– Linux Containers userspace tools
It was discovered that LXC incorrectly handled the TIOCSTI ioctl. An
attacker could possibly use this issue to escape LXC containers.
The problem can be corrected by updating your system to the following
To update your system, please follow these instructions:
After a standard system update you need to restart LXC containers to make
all the necessary changes.