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.

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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.

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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

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Further reading