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Vulnerability record · CVE-2022-23471 · published 7 December 2022

CVE-2022-23471: Linuxfoundation containerd uncontrolled resource consumption vulnerability

Linuxfoundation · Containerd

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.

6.5 CVSS 3.1 Medium EPSS 1.1% · top 36.6% CWE-400 · Uncontrolled resource consumptionCWE-401 · Memory leak
6.5CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/containerd/containerd/commit/a05d175400b1145e5e6a735a6710579d181e7fb0 PatchThird Party Advisory
https://github.com/containerd/containerd/security/advisories/GHSA-2qjp-425j-52j9 Third Party Advisory
https://security.gentoo.org/glsa/202401-31
https://github.com/containerd/containerd/commit/a05d175400b1145e5e6a735a6710579d181e7fb0 PatchThird Party Advisory
https://github.com/containerd/containerd/security/advisories/GHSA-2qjp-425j-52j9 Third Party Advisory
https://security.gentoo.org/glsa/202401-31

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Source: NIST National Vulnerability Database (record CVE-2022-23471), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.