USN-3730-1: LXC vulnerability
lxc vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Summary
LXC would allow unintended access to files.
Software Description
- lxc - Linux Containers userspace tools
Details
Matthias Gerstner discovered that LXC incorrectly handled the lxc-user-nic utility. A local attacker could possibly use this issue to open arbitrary files.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.04 LTS
- lxc - 3.0.1-0ubuntu1~18.04.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart LXC containers to make all the necessary changes.
References
from Ubuntu Security Notices https://ift.tt/2M76Qnl