1. Ubuntu Security Notices
  2. USN-4881-1

USN-4881-1: containerd vulnerability

Publication date

17 March 2021

Overview

The system could be made to expose sensitive information.

Releases

Packages

Details

It was discovered that containerd incorrectly handled certain environment
variables. Contrary to expectations, a container could receive environment
variables defined for a different container, possibly containing sensitive
information.

It was discovered that containerd incorrectly handled certain environment
variables. Contrary to expectations, a container could receive environment
variables defined for a different container, possibly containing sensitive
information.

Update instructions

After a standard system update you need to restart containerd to 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
20.10 groovy containerd –  1.3.7-0ubuntu3.3
20.04 focal containerd –  1.3.3-0ubuntu2.3

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References

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