vulnerability
Red Hat: CVE-2020-8492: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:N/I:N/A:C) | Jan 30, 2020 | Oct 1, 2020 | Aug 11, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
Jan 30, 2020
Added
Oct 1, 2020
Modified
Aug 11, 2025
Description
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-cython-debugsourceredhat-upgrade-numpy-debugsourceredhat-upgrade-platform-pythonredhat-upgrade-platform-python-debugredhat-upgrade-platform-python-develredhat-upgrade-python-cffi-debugsourceredhat-upgrade-python-cryptography-debugsourceredhat-upgrade-python-lxml-debugsourceredhat-upgrade-python-markupsafe-debugsourceredhat-upgrade-python-psutil-debugsourceredhat-upgrade-python-psycopg2-debugsourceredhat-upgrade-python3redhat-upgrade-python3-debugredhat-upgrade-python3-debuginforedhat-upgrade-python3-debugsourceredhat-upgrade-python3-develredhat-upgrade-python3-idleredhat-upgrade-python3-libsredhat-upgrade-python3-testredhat-upgrade-python3-tkinterredhat-upgrade-python38redhat-upgrade-python38-asn1cryptoredhat-upgrade-python38-babelredhat-upgrade-python38-cffiredhat-upgrade-python38-cffi-debuginforedhat-upgrade-python38-chardetredhat-upgrade-python38-cryptographyredhat-upgrade-python38-cryptography-debuginforedhat-upgrade-python38-cythonredhat-upgrade-python38-cython-debuginforedhat-upgrade-python38-debugredhat-upgrade-python38-debuginforedhat-upgrade-python38-debugsourceredhat-upgrade-python38-develredhat-upgrade-python38-idleredhat-upgrade-python38-idnaredhat-upgrade-python38-jinja2redhat-upgrade-python38-libsredhat-upgrade-python38-lxmlredhat-upgrade-python38-lxml-debuginforedhat-upgrade-python38-markupsaferedhat-upgrade-python38-markupsafe-debuginforedhat-upgrade-python38-mod_wsgiredhat-upgrade-python38-numpyredhat-upgrade-python38-numpy-debuginforedhat-upgrade-python38-numpy-docredhat-upgrade-python38-numpy-f2pyredhat-upgrade-python38-pipredhat-upgrade-python38-pip-wheelredhat-upgrade-python38-plyredhat-upgrade-python38-psutilredhat-upgrade-python38-psutil-debuginforedhat-upgrade-python38-psycopg2redhat-upgrade-python38-psycopg2-debuginforedhat-upgrade-python38-psycopg2-docredhat-upgrade-python38-psycopg2-testsredhat-upgrade-python38-pycparserredhat-upgrade-python38-pymysqlredhat-upgrade-python38-pysocksredhat-upgrade-python38-pytzredhat-upgrade-python38-pyyamlredhat-upgrade-python38-pyyaml-debuginforedhat-upgrade-python38-requestsredhat-upgrade-python38-rpm-macrosredhat-upgrade-python38-scipyredhat-upgrade-python38-scipy-debuginforedhat-upgrade-python38-setuptoolsredhat-upgrade-python38-setuptools-wheelredhat-upgrade-python38-sixredhat-upgrade-python38-testredhat-upgrade-python38-tkinterredhat-upgrade-python38-urllib3redhat-upgrade-python38-wheelredhat-upgrade-python38-wheel-wheelredhat-upgrade-pyyaml-debugsourceredhat-upgrade-scipy-debugsource
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