CVE-2021-23336
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- CVE-2021-23336
CVE Details
| Release Date: | 2021-02-15 |
Description
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
See more information about CVE-2021-23336 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: | 5.9 | Base Metrics: | AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H |
| Access Vector: | Network | Attack Complexity: | High |
| Privileges Required: | None | User Interaction: | Required |
| Scope: | Unchanged | Confidentiality Impact: | None |
| Integrity Impact: | Low | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (Cython) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (Cython) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (babel) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (babel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (mod_wsgi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-asn1crypto) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-atomicwrites) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-backports) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-backports-ssl_match_hostname) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-cffi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-coverage) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-cryptography) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-dns) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-docs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-docutils) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-funcsigs) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-ipaddress) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-mock) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-more-itertools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-nose) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-packaging) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-ply) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psutil) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pycparser) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pygments) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pymongo) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pytest-mock) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-setuptools_scm) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-sqlalchemy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-virtualenv) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-wcwidth) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python2) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-pip) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-rpm-macros) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-setuptools) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python2-six) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (python3) | ELSA-2021-1633 | 2021-05-25 |
| Oracle Linux version 8 (python38) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pip) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pyparsing) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-setuptools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-six) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (pytz) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (pytz) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4151 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4162 | 2021-11-16 |
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
