1. Ubuntu Security Notices
  2. USN-2753-1

USN-2753-1: LXC vulnerability

Publication date

29 September 2015

Overview

LXC could be made to start containers without AppArmor confinement or access the host filesystem.

Releases

Packages

  • lxc - Linux Containers userspace tools

Details

Roman Fiedler discovered a directory traversal flaw in lxc-start. A local
attacker with access to an LXC container could exploit this flaw to run
programs inside the container that are not confined by AppArmor or expose
unintended files in the host to the container.

Roman Fiedler discovered a directory traversal flaw in lxc-start. A local
attacker with access to an LXC container could exploit this flaw to run
programs inside the container that are not confined by AppArmor or expose
unintended files in the host to the container.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.04 vivid lxc –  1.1.2-0ubuntu3.2
14.04 trusty lxc –  1.0.7-0ubuntu0.5

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References

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