USN-5311-2: containerd regression

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS

Packages

• containerd - daemon to control runC

Details

USN-5311-1 released updates for contained. Unfortunately, a subsequent update
reverted the fix for this CVE by mistake. This update corrects the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that containerd allows attackers to gain access to read-
only copies of arbitrary files and directories on the host via a specially-
crafted image configuration. An attacker could possibly use this issue to
obtain sensitive information.

Update instructions

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

Ubuntu 21.10

• containerd - 1.5.9-0ubuntu1~21.10.3

Ubuntu 20.04

• containerd - 1.5.9-0ubuntu1~20.04.4

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

References

• CVE-2022-23648

Related notices

• USN-5311-1: golang-github-containerd-containerd-dev, containerd
• USN-5521-1: golang-github-docker-containerd-dev, containerd