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Debian dla-3863 : jupyter-nbconvert - security update

medium Nessus Plugin ID 206424

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-3863 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-3863-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin September 02, 2024 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : nbconvert Version : 5.6.1-3+deb11u1 CVE ID : CVE-2021-32862

 Alvaro Muoz from the GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert, a tool and library used to convert notebooks to various other formats via Jinja templates.

 When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server without tight Content-Security-Policy (e.g., nbviewer).

 * GHSL-2021-1013: XSS in notebook.metadata.language_info.pygments_lexer;
 * GHSL-2021-1014: XSS in notebook.metadata.title;
 * GHSL-2021-1015: XSS in notebook.metadata.widgets;
 * GHSL-2021-1016: XSS in notebook.cell.metadata.tags;
 * GHSL-2021-1017: XSS in output data text/html cells;
 * GHSL-2021-1018: XSS in output data image/svg+xml cells;
 * GHSL-2021-1019: XSS in notebook.cell.output.svg_filename;
 * GHSL-2021-1020: XSS in output data text/markdown cells;
 * GHSL-2021-1021: XSS in output data application/javascript cells;
 * GHSL-2021-1022: XSS in output.metadata.filenames image/png and image/jpeg;
 * GHSL-2021-1023: XSS in output data image/png and image/jpeg cells;
 * GHSL-2021-1024: XSS in output.metadata.width/height image/png and image/jpeg;
 * GHSL-2021-1025: XSS in output data application/vnd.jupyter.widget-state+ json cells;
 * GHSL-2021-1026: XSS in output data application/vnd.jupyter.widget-view+ json cells;
 * GHSL-2021-1027: XSS in raw cells; and
 * GHSL-2021-1028: XSS in markdown cells.

 Some of these vulnerabilities, namely GHSL-2021-1017, -1020, -1021, and
 -1028, are actually design decisions where text/html, text/markdown, application/JavaScript and markdown cells should allow for arbitrary JavaScript code execution. These vulnerabilities are therefore left open by default, but users can now opt-out and strip down all JavaScript elements via a new HTMLExporter option `sanitize_html`.

 For Debian 11 bullseye, this problem has been fixed in version 5.6.1-3+deb11u1.

 We recommend that you upgrade your nbconvert packages.

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

 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 Attachment:
 signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the jupyter-nbconvert packages.

See Also

https://security-tracker.debian.org/tracker/source-package/nbconvert

https://security-tracker.debian.org/tracker/CVE-2021-32862

https://packages.debian.org/source/bullseye/nbconvert

Plugin Details

Severity: Medium

ID: 206424

File Name: debian_DLA-3863.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/2/2024

Updated: 9/2/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2021-32862

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:jupyter-nbconvert, p-cpe:/a:debian:debian_linux:python3-nbconvert, p-cpe:/a:debian:debian_linux:python-nbconvert-doc

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/2/2024

Vulnerability Publication Date: 8/10/2022

Reference Information

CVE: CVE-2021-32862