ghsa-2qjp-425j-52j9
Vulnerability from github
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 security@containerd.io
To report a security issue in containerd: * Report a new vulnerability * Email us at security@containerd.io
{ "affected": [ { "package": { "ecosystem": "Go", "name": "github.com/containerd/containerd" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "1.5.16" } ], "type": "ECOSYSTEM" } ] }, { "package": { "ecosystem": "Go", "name": "github.com/containerd/containerd" }, "ranges": [ { "events": [ { "introduced": "1.6.0" }, { "fixed": "1.6.12" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2022-23471" ], "database_specific": { "cwe_ids": [ "CWE-400", "CWE-401" ], "github_reviewed": true, "github_reviewed_at": "2022-12-07T23:23:43Z", "nvd_published_at": "2022-12-07T23:15:00Z", "severity": "MODERATE" }, "details": "### Impact\n\nA bug was found in containerd\u0027s 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\u0027s 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\u0027s CRI implementation and the stream server is used for handling container IO.\n\n### Patches\n\nThis bug has been fixed in containerd 1.6.12 and 1.5.16. Users should update to these versions to resolve the issue.\n\n### Workarounds\n\nEnsure that only trusted images and commands are used and that only trusted users have permissions to execute commands in running containers. \n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\nTo report a security issue in containerd:\n* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new)\n* Email us at [security@containerd.io](mailto:security@containerd.io)", "id": "GHSA-2qjp-425j-52j9", "modified": "2022-12-07T23:23:43Z", "published": "2022-12-07T23:23:43Z", "references": [ { "type": "WEB", "url": "https://github.com/containerd/containerd/security/advisories/GHSA-2qjp-425j-52j9" }, { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23471" }, { "type": "WEB", "url": "https://github.com/containerd/containerd/commit/241563be06a3de8b6a849414c4e805b68d3bb295" }, { "type": "WEB", "url": "https://github.com/containerd/containerd/commit/a05d175400b1145e5e6a735a6710579d181e7fb0" }, { "type": "PACKAGE", "url": "https://github.com/containerd/containerd" }, { "type": "WEB", "url": "https://github.com/containerd/containerd/releases/tag/v1.5.16" }, { "type": "WEB", "url": "https://github.com/containerd/containerd/releases/tag/v1.6.12" }, { "type": "WEB", "url": "https://security.gentoo.org/glsa/202401-31" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H", "type": "CVSS_V3" } ], "summary": "containerd CRI stream server vulnerable to host memory exhaustion via terminal" }
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.