USN-5311-1: containerd vulnerability

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• containerd - daemon to control runC

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 - 1.5.5-0ubuntu3.1

Ubuntu 20.04

• containerd - 1.5.5-0ubuntu3~20.04.2

Ubuntu 18.04

• containerd - 1.5.5-0ubuntu3~18.04.2

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

References

• CVE-2022-23648

Related notices

• USN-5311-2: containerd, golang-github-containerd-containerd-dev
• USN-5521-1: containerd, golang-github-docker-containerd-dev