Vulnerability Details CVE-2023-48311
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 47.9%
CVSS Severity
CVSS v3 Score 8.0
References
- https://github.com/jupyterhub/dockerspawner/commit/3ba4b665b6ca6027ea7a032d7ca3eab977574626
- https://github.com/jupyterhub/dockerspawner/security/advisories/GHSA-hfgr-h3vc-p6c2
- https://github.com/jupyterhub/dockerspawner/commit/3ba4b665b6ca6027ea7a032d7ca3eab977574626
- https://github.com/jupyterhub/dockerspawner/security/advisories/GHSA-hfgr-h3vc-p6c2
Products affected by CVE-2023-48311
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cpe:2.3:a:jupyter:dockerspawner:0.11.0
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cpe:2.3:a:jupyter:dockerspawner:0.11.1
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cpe:2.3:a:jupyter:dockerspawner:12.0.0
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cpe:2.3:a:jupyter:dockerspawner:12.1.0