containerd CRI stream server vulnerable to host memory exhaustion via terminal

TRUNG BÌNH 6.5CVE-2022-23471 · GHSA-2qjp-425j-52j9 · GO-2022-1147 · Công bố 07/12/2022 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2022-23471 là lỗ hổng mức TRUNG BÌNH (CVSS 6.5) ảnh hưởng github.com/containerd/containerd, containerd (linuxfoundation).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 1.1%, cao hơn 65.9% các lỗ hổng khác.
Cách xử lý: cập nhật lên 1.6.12, 1.5.16 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
github.com/containerd/containerd Go	`≥ 1.6.0, < 1.6.12< 1.5.16`	`1.6.121.5.16`
containerd linuxfoundation	`≥ 1.6.0, < 1.6.12< 1.5.16`	`1.6.121.5.16`

Mô tả

Impact

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.

Patches

This bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue.

Workarounds

Ensure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers.

For more information

If you have any questions or comments about this advisory:

Open an issue in containerd
Email us at [email protected]

To report a security issue in containerd:

Report a new vulnerability
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Mô tả của NVD

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.