vulnerability

Rocky Linux: CVE-2024-5642: python39-3.9 (Multiple Advisories)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
Dec 18, 2025
Added
Feb 5, 2026
Modified
Feb 5, 2026

Description

CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically a protocol name would be configured).

Solutions

rocky-upgrade-cython-debugsourcerocky-upgrade-numpy-debugsourcerocky-upgrade-python-cffi-debugsourcerocky-upgrade-python-cryptography-debugsourcerocky-upgrade-python-lxml-debugsourcerocky-upgrade-python-psutil-debugsourcerocky-upgrade-python-psycopg2-debugsourcerocky-upgrade-python3rocky-upgrade-python3-debugrocky-upgrade-python3-develrocky-upgrade-python3-idlerocky-upgrade-python3-libsrocky-upgrade-python3-testrocky-upgrade-python3-tkinterrocky-upgrade-python3.9-debuginforocky-upgrade-python3.9-debugsourcerocky-upgrade-python39rocky-upgrade-python39-cffirocky-upgrade-python39-cffi-debuginforocky-upgrade-python39-cryptographyrocky-upgrade-python39-cryptography-debuginforocky-upgrade-python39-cythonrocky-upgrade-python39-cython-debuginforocky-upgrade-python39-debugrocky-upgrade-python39-debuginforocky-upgrade-python39-debugsourcerocky-upgrade-python39-develrocky-upgrade-python39-idlerocky-upgrade-python39-libsrocky-upgrade-python39-lxmlrocky-upgrade-python39-lxml-debuginforocky-upgrade-python39-mod_wsgirocky-upgrade-python39-numpyrocky-upgrade-python39-numpy-debuginforocky-upgrade-python39-numpy-f2pyrocky-upgrade-python39-psutilrocky-upgrade-python39-psutil-debuginforocky-upgrade-python39-psycopg2rocky-upgrade-python39-psycopg2-debuginforocky-upgrade-python39-psycopg2-docrocky-upgrade-python39-psycopg2-testsrocky-upgrade-python39-pybind11rocky-upgrade-python39-pybind11-develrocky-upgrade-python39-pyyamlrocky-upgrade-python39-pyyaml-debuginforocky-upgrade-python39-scipyrocky-upgrade-python39-scipy-debuginforocky-upgrade-python39-testrocky-upgrade-python39-tkinterrocky-upgrade-pyyaml-debugsourcerocky-upgrade-scipy-debugsource
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