A jupyter-notebook security update has been released for Debian GNU/Linux 9 LTS.

DLA 2432-1: jupyter-notebook security update

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Debian LTS Advisory DLA-2432-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Abhijith PA
November 19, 2020   https://wiki.debian.org/LTS
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Package : jupyter-notebook
Version : 4.2.3-4+deb9u1
CVE ID : CVE-2018-8768 CVE-2018-19351 CVE-2018-21030
Debian Bug : 893436 917409

Several vulnerabilities have been discovered in jupyter-notebook.

CVE-2018-8768

A maliciously forged notebook file can bypass sanitization to execute
Javascript in the notebook context. Specifically, invalid HTML is
'fixed' by jQuery after sanitization, making it dangerous.

CVE-2018-19351

allows XSS via an untrusted notebook because nbconvert responses are
considered to have the same origin as the notebook server.

CVE-2018-21030

jupyter-notebook does not use a CSP header to treat served files as
belonging to a separate origin. Thus, for example, an XSS payload can
be placed in an SVG document.

For Debian 9 stretch, these problems have been fixed in version
4.2.3-4+deb9u1.

We recommend that you upgrade your jupyter-notebook packages.

For the detailed security status of jupyter-notebook please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/jupyter-notebook

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS