Python Packaging Authority (PyPA)’s setuptools is a library designed to facilitate packaging Python projects. Setuptools version 65.5.0 and earlier could allow remote attackers to cause a denial of service by fetching malicious HTML from a PyPI package or custom PackageIndex page due to a vulnerable Regular Expression in package_index. This has been patched in version 65.5.1.
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-40897
- https://github.com/pypa/setuptools/blob/fe8a98e696241487ba6ac9f91faa38ade939ec5d/setuptools/package_index.py#L200
- https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/
- https://github.com/pypa/setuptools/issues/3659
- https://github.com/pypa/setuptools/commit/43a9c9bfa6aa626ec2a22540bea28d2ca77964be
- https://github.com/pypa/setuptools/compare/v65.5.0…v65.5.1
- https://pyup.io/vulnerabilities/CVE-2022-40897/52495/
- https://setuptools.pypa.io/en/latest/
- https://github.com/advisories/GHSA-r9hx-vwmv-q579