CVE-2023-48311

Any image allowed by default

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.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory github.com
Affected: jupyterhub dockerspawner
Published at:
Updated at:

References

Link Tags
https://github.com/jupyterhub/dockerspawner/security/advisories/GHSA-hfgr-h3vc-p6c2 vendor advisory
https://github.com/jupyterhub/dockerspawner/commit/3ba4b665b6ca6027ea7a032d7ca3eab977574626 patch

Frequently Asked Questions

What is the severity of CVE-2023-48311?
CVE-2023-48311 has been scored as a high severity vulnerability.
How to fix CVE-2023-48311?
To fix CVE-2023-48311, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-48311 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-48311 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-48311?
CVE-2023-48311 affects jupyterhub dockerspawner.
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