==========================================================================
Ubuntu Security Notice USN-7374-1
March 26, 2025

containerd vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

containerd could be made to behave unexpectedly.

Software Description:
- containerd-app: open and reliable container runtime
- containerd: open and reliable container runtime library

Details:

Benjamin Koltermann discovered that containerd incorrectly handled large
user id values. This could result in containers possibly being run as root,
contrary to expectations.

Update instructions:

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

Ubuntu 24.10
  containerd                      2.0.0~rc3-0ubuntu1.1

Ubuntu 24.04 LTS
  containerd                      1.7.24-0ubuntu1~24.04.2
  golang-github-containerd-containerd-dev 1.6.24~ds1-1ubuntu1.2+esm1
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  containerd                      1.7.24-0ubuntu1~22.04.2
  golang-github-containerd-containerd-dev  1.6.12-0ubuntu1~22.04.8

Ubuntu 20.04 LTS
  containerd                      1.7.24-0ubuntu1~20.04.2
  golang-github-containerd-containerd-dev  1.6.12-0ubuntu1~20.04.8

Ubuntu 18.04 LTS
  containerd                      1.6.12-0ubuntu1~18.04.1+esm2
                                  Available with Ubuntu Pro
  golang-github-containerd-containerd-dev 1.6.12-0ubuntu1~18.04.1+esm2
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  containerd                      1.2.6-0ubuntu1~16.04.6+esm5
                                  Available with Ubuntu Pro
  golang-github-docker-containerd-dev  1.2.6-0ubuntu1~16.04.6+esm5
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7374-1
  CVE-2024-40635

Package Information:
https://launchpad.net/ubuntu/+source/containerd-app/2.0.0~rc3-0ubuntu1.1
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu1~22.04.8
https://launchpad.net/ubuntu/+source/containerd-app/1.7.24-0ubuntu1~22.04.2
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu1~20.04.8
https://launchpad.net/ubuntu/+source/containerd-app/1.7.24-0ubuntu1~20.04.2