USN-3375-1: LXC vulnerability

2 August 2017

LXC would allow unintended access.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • lxc - Linux Containers userspace tools

Details

It was discovered that LXC incorrectly handled the TIOCSTI ioctl. An
attacker could possibly use this issue to escape LXC containers.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

After a standard system update you need to restart LXC containers to make
all the necessary changes.

References