CVE-2021-3733

CVE Details

Release Date:2022-03-10

Description


There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.

See more information about CVE-2021-3733 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6.5 Base Metrics: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (Cython)ELSA-2021-41602021-11-16
Oracle Linux version 8 (Cython)ELSA-2022-17642022-05-17
Oracle Linux version 8 (Cython)ELSA-2022-18212022-05-17
Oracle Linux version 8 (PyYAML)ELSA-2021-41602021-11-16
Oracle Linux version 8 (PyYAML)ELSA-2022-17642022-05-17
Oracle Linux version 8 (PyYAML)ELSA-2022-18212022-05-17
Oracle Linux version 8 (babel)ELSA-2022-17642022-05-17
Oracle Linux version 8 (babel)ELSA-2022-18212022-05-17
Oracle Linux version 8 (mod_wsgi)ELSA-2021-41602021-11-16
Oracle Linux version 8 (mod_wsgi)ELSA-2022-17642022-05-17
Oracle Linux version 8 (numpy)ELSA-2021-41602021-11-16
Oracle Linux version 8 (numpy)ELSA-2022-17642022-05-17
Oracle Linux version 8 (numpy)ELSA-2022-18212022-05-17
Oracle Linux version 8 (pybind11)ELSA-2021-41602021-11-16
Oracle Linux version 8 (pytest)ELSA-2021-41602021-11-16
Oracle Linux version 8 (pytest)ELSA-2022-17642022-05-17
Oracle Linux version 8 (pytest)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-PyMySQL)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-PyMySQL)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-PyMySQL)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-asn1crypto)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-atomicwrites)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-attrs)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-attrs)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-attrs)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-backports)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-backports-ssl_match_hostname)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-cffi)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-cffi)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-chardet)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-chardet)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-chardet)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-coverage)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-cryptography)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-cryptography)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-dns)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-docs)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-docutils)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-funcsigs)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-idna)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-idna)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-idna)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-iniconfig)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-ipaddress)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-jinja2)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-jinja2)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-lxml)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-lxml)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-lxml)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-markupsafe)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-markupsafe)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-mock)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-more-itertools)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-more-itertools)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-nose)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-packaging)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-packaging)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-pluggy)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-pluggy)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-pluggy)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-ply)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-ply)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-psutil)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-psutil)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-psycopg2)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-psycopg2)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-psycopg2)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-py)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-py)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-py)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-pycparser)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-pycparser)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-pygments)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-pymongo)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-pysocks)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-pysocks)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-pysocks)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-pytest-mock)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-requests)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-requests)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-requests)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-setuptools_scm)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-sqlalchemy)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-toml)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-urllib3)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-urllib3)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-urllib3)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-virtualenv)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python-wcwidth)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-wcwidth)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-wheel)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python-wheel)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python-wheel)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python2)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python2-pip)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python2-rpm-macros)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python2-setuptools)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python2-six)ELSA-2022-18212022-05-17
Oracle Linux version 8 (python3)ELSA-2021-40572021-11-02
Oracle Linux version 8 (python38)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python39)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python3x-pip)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python3x-pip)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python3x-pyparsing)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python3x-pyparsing)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python3x-setuptools)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python3x-setuptools)ELSA-2022-17642022-05-17
Oracle Linux version 8 (python3x-six)ELSA-2021-41602021-11-16
Oracle Linux version 8 (python3x-six)ELSA-2022-17642022-05-17
Oracle Linux version 8 (pytz)ELSA-2022-17642022-05-17
Oracle Linux version 8 (pytz)ELSA-2022-18212022-05-17
Oracle Linux version 8 (scipy)ELSA-2021-41602021-11-16
Oracle Linux version 8 (scipy)ELSA-2022-17642022-05-17
Oracle Linux version 8 (scipy)ELSA-2022-18212022-05-17



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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