CVE-2023-48311
Description
dockerspawner is a tool to spawn JupyterHub single user servers in Docker containers. Users of JupyterHub deployments running DockerSpawner starting with 0.11.0 without specifying `DockerSpawner.allowed_images` configuration allow users to launch _any_ pullable docker image, instead of restricting to only the single configured image, as intended. This issue has been addressed in commit `3ba4b665b` which has been included in dockerspawner release version 13. Users are advised to upgrade. Users unable to upgrade should explicitly set `DockerSpawner.allowed_images` to a non-empty list containing only the default image will result in the intended default behavior.
How to fix
- jupyter dockerspawner13.0 or later
- dockerspawner13.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jupyter dockerspawner | 0.11.0 ≤ v < 13.0 | 13.0 |
| dockerspawnerPyPI | 0.11.0 ≤ v < 13.0.0 | 13.0.0 |
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