LXC could be made to allow containers to access to the host filesystem.
Roman Fiedler discovered a directory traversal flaw in lxc-attach. An attacker with access to an LXC container could exploit this flaw to access files outside of the container.
23 November 2016
A security issue affects these releases of Ubuntu and its derivatives:
LXC could be made to allow containers to access to the host filesystem.
Roman Fiedler discovered a directory traversal flaw in lxc-attach. An attacker with access to an LXC container could exploit this flaw to access files outside of the container.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon