CVE-2021-33503
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- CVE-2021-33503
CVE Details
| Release Date: | 2021-06-29 | |
| Impact: | None | What is this? |
Description
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
See more information about CVE-2021-33503 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 7.5 |
| Vector String: | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Version: | 3.0 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (Cython) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (Cython) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (PyYAML) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (babel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (mod_wsgi) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (mod_wsgi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (numpy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (pybind11) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (pytest) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2021-4160 | 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-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-attrs) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-cffi) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-cffi) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-chardet) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-cryptography) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-cryptography) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-idna) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-iniconfig) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-lxml) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-more-itertools) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-more-itertools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-packaging) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-packaging) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-ply) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-ply) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psutil) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-psutil) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-py) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pycparser) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pycparser) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-requests) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-toml) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-wcwidth) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-wcwidth) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python-wheel) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python38) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python39) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pip) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pip) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pyparsing) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-pyparsing) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-setuptools) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-setuptools) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (python3x-six) | ELSA-2021-4160 | 2021-11-16 |
| Oracle Linux version 8 (python3x-six) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (pytz) | ELSA-2021-4162 | 2021-11-16 |
| Oracle Linux version 8 (scipy) | ELSA-2021-4160 | 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:
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- Vulnerability scanning tools vendors and project maintainers - follow the standard ISV process
