CVE-2022-23471

containerd is an open source container runtime. A bug was found in containerd's CRI implementation where a user can exhaust memory on the host. In the CRI stream server, a goroutine is launched to handle terminal resize events if a TTY is requested. If the user's process fails to launch due to, for example, a faulty command, the goroutine will be stuck waiting to send without a receiver, resulting in a memory leak. Kubernetes and crictl can both be configured to use containerd's CRI implementation and the stream server is used for handling container IO. This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

Affected products

Alt Linux, Astra Linux, Kubernetes Containerd, Linuxmint, Red Os, Suse, Ubuntu

Linuxfoundation Containerd

< 1.5.16, 1.6.12

Fix

Available

CVSS 3.1

6.5 MEDIUM

EPSS

1.0% (60th percentile)

Weakness

CWE-400, CWE-401

NVD status

Modified

Published

2022-12-07

No exploit for CVE-2022-23471 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.