A containerd security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, 22.10, and 23.04.

[USN-6202-1] containerd vulnerabilities

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Ubuntu Security Notice USN-6202-1
July 05, 2023

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

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in containerd.

Software Description:
- containerd: daemon to control runC

Details:

David Korczynski and Adam Korczynski discovered that containerd
incorrectly processed certain images with large files. An attacker
could possibly use this issue to cause containerd to crash,
resulting in a denial of service. (CVE-2023-25153)

It was discovered that containerd incorrectly set up supplementary
groups inside a container. An attacker with direct access to the
container could possibly use this issue to obtain sensitive information
or execute code with higher privileges. (CVE-2023-25173)

Update instructions:

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

Ubuntu 23.04:
  containerd                      1.6.12-0ubuntu3.1

Ubuntu 22.10:
  containerd                      1.6.12-0ubuntu1~22.10.2

Ubuntu 22.04 LTS:
  containerd                      1.6.12-0ubuntu1~22.04.3

Ubuntu 20.04 LTS:
  containerd                      1.6.12-0ubuntu1~20.04.3

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  containerd                      1.6.12-0ubuntu1~18.04.1+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  containerd                      1.2.6-0ubuntu1~16.04.6+esm4

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

References:
  https://ubuntu.com/security/notices/USN-6202-1
  CVE-2023-25153, CVE-2023-25173

Package Information:
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu3.1
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu1~22.10.2
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu1~22.04.3
https://launchpad.net/ubuntu/+source/containerd/1.6.12-0ubuntu1~20.04.3