jupyter_core: Arbitrary Code Execution

Background

jupyter_core contains core Jupyter functionality.

Description

jupyter_core trusts files for execution in the current working directory without validating ownership of those files.

Impact

By writing to a directory that is used a the current working directory for jupyter_core by another user, users can elevate privileges to those of another user.

Workaround

There is no known workaround at this time.

Resolution

All jupyter_core users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-python/jupyter_core-4.11.2"