==========================================================================
Ubuntu Security Notice USN-6153-1
June 12, 2023

jupyter-core vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS (Available with Ubuntu Pro)
- Ubuntu 20.04 LTS (Available with Ubuntu Pro)
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)

Summary:

Jupyter Core could be made to run programs as your login if it opened a
specially crafted file.

Software Description:
- jupyter-core: Core common functionality of Jupyter projects (tools)

Details:

It was discovered that Jupyter Core executed untrusted files in the current
working directory. An attacker could possibly use this issue to execute
arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
   python3-jupyter-core            4.11.1-1ubuntu0.22.10.1

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
   python3-jupyter-core            4.9.1-1ubuntu0.1~esm1

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
   python3-jupyter-core            4.6.3-3ubuntu0.1~esm1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   python-jupyter-core             4.4.0-2ubuntu0.1~esm1
   python3-jupyter-core            4.4.0-2ubuntu0.1~esm1

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6153-1
   CVE-2022-39286

Package Information:
   https://launchpad.net/ubuntu/+source/jupyter-core/4.11.1-1ubuntu0.22.10.1