Security features bypass in Jupyter Notebook - CVE-2018-21030

Vulnerability identifier: #VU66861

CSH Severity: Low

CVSS v4: 2.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-21030

CWE-ID: CWE-254

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote user to perform XSS attacks.

The vulnerability exists due to application does not use a CSP header to treat served files as belonging to a separate origin. A remote user can upload an SVG file with XSS payload and execute arbitrary JavaScript code in victim's browser.

Jupyter Notebook
Ubuntu
python3-notebook (Ubuntu package)
jupyter-notebook (Ubuntu package)
python-notebook (Ubuntu package)

Install updates from vendor's website.

Jupyter Notebook - update to 5.5.0
python3-notebook (Ubuntu package) - addressed in versions 5.2.2-1ubuntu0.1, 6.0.3-2ubuntu0.1, 6.4.8-1ubuntu0.1
jupyter-notebook (Ubuntu package) - addressed in versions 5.2.2-1ubuntu0.1, 6.0.3-2ubuntu0.1, 6.4.8-1ubuntu0.1
python-notebook (Ubuntu package) - update to 5.2.2-1ubuntu0.1

• https://github.com/jupyter/notebook/pull/3341
• https://github.com/jupyter/notebook/releases/tag/5.5.0
• https://lists.debian.org/debian-lts-announce/2020/11/msg00033.html

• Security features bypass in Jupyter Notebook
• Ubuntu update for jupyter-notebook