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CVE-2023-48311

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Date: December 8, 2023

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.

Language: Python

Severity Score

Related Resources (5)

https://github.com/jupyterhub/dockerspawner/security/advisories/GHSA-hfgr-h3vc-p6c2
https://nvd.nist.gov/vuln/detail/CVE-2023-48311
https://github.com/jupyterhub/dockerspawner
https://github.com/jupyterhub/dockerspawner/commit/3ba4b665b6ca6027ea7a032d7ca3eab977574626
https://www.mend.io/vulnerability-database/CVE-2023-48311

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

Insufficient Information

NVD-CWE-noinfo

Top Fix

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Upgrade to version dockerspawner - 13.0.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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