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USN-3730-1: LXC vulnerability

6 August 2018

LXC would allow unintended access to files.

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Releases

Packages

  • 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.

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 18.04

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

References