# CVE-2022-23471: containerd: containerd is an open source container runtime

CVE-2022-23471 is fixed in 6 products on 1 platform, first by containerd 1.5.9-0ubuntu1~18.04.2, released December 7, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-23471
- Priority: Routine
- CVSS: 6.5 (Medium)
- EPSS: 0.0111
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 7, 2022

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | containerd Debian 12.15 (bookworm) | 1.6.12~ds1-1 | [DEBIAN-CVE-2022-23471](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23471.md) | Dec 7, 2022 |
| Linux | containerd Debian 13.5 (trixie) | 1.6.12~ds1-1 | [DEBIAN-CVE-2022-23471](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23471.md) | Dec 7, 2022 |
| Linux | containerd Debian 14 | 1.6.12~ds1-1 | [DEBIAN-CVE-2022-23471](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23471.md) | Dec 7, 2022 |
| Linux | containerd Ubuntu 18.04.6 LTS (bionic) | 1.5.9-0ubuntu1~18.04.2 | [containerd 1.5.9-0ubuntu1~18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-containerd-1.5.9-0ubuntu1-18.04.2.md) | Dec 7, 2022 |
| Linux | containerd Ubuntu 20.04 LTS (focal) | 1.5.9-0ubuntu1~20.04.6 | [containerd 1.5.9-0ubuntu1~20.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-containerd-1.5.9-0ubuntu1-20.04.6.md) | Dec 7, 2022 |
| Linux | containerd Ubuntu 22.04.1 LTS (jammy) | 1.5.9-0ubuntu3.1 | [containerd 1.5.9-0ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-containerd-1.5.9-0ubuntu3.1.md) | Dec 7, 2022 |
| Linux | containerd amzn 2023 | 1.6.19-1.amzn2023.0.1 | [ALAS2023-2023-156](https://patchblox.com/security/data/fix/linux/alas2023-2023-156.md) | Mar 30, 2023 |
| Linux | containerd-debuginfo amzn 2023 | 1.6.19-1.amzn2023.0.1 | [ALAS2023-2023-156](https://patchblox.com/security/data/fix/linux/alas2023-2023-156.md) | Mar 30, 2023 |
| Linux | containerd-debugsource amzn 2023 | 1.6.19-1.amzn2023.0.1 | [ALAS2023-2023-156](https://patchblox.com/security/data/fix/linux/alas2023-2023-156.md) | Mar 30, 2023 |
| Linux | containerd-stress amzn 2023 | 1.6.19-1.amzn2023.0.1 | [ALAS2023-2023-156](https://patchblox.com/security/data/fix/linux/alas2023-2023-156.md) | Mar 30, 2023 |
| Linux | containerd-stress-debuginfo amzn 2023 | 1.6.19-1.amzn2023.0.1 | [ALAS2023-2023-156](https://patchblox.com/security/data/fix/linux/alas2023-2023-156.md) | Mar 30, 2023 |
| Linux | golang-github-containerd-containerd-dev Ubuntu 18.04.6 LTS (bionic) | 1.5.9-0ubuntu1~18.04.2 | [golang-github-containerd-containerd-dev 1.5.9-0ubuntu1~18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-golang-github-containerd-containerd-dev-1.5.9-0ubuntu1-18.04.2.md) | Dec 7, 2022 |
| Linux | golang-github-containerd-containerd-dev Ubuntu 20.04 LTS (focal) | 1.5.9-0ubuntu1~20.04.6 | [golang-github-containerd-containerd-dev 1.5.9-0ubuntu1~20.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-golang-github-containerd-containerd-dev-1.5.9-0ubuntu1-20.04.6.md) | Dec 7, 2022 |
| Linux | golang-github-containerd-containerd-dev Ubuntu 22.04.1 LTS (jammy) | 1.5.9-0ubuntu3.1 | [golang-github-containerd-containerd-dev 1.5.9-0ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-golang-github-containerd-containerd-dev-1.5.9-0ubuntu3.1.md) | Dec 7, 2022 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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