CVE-2021-4189
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- CVE-2021-4189
CVE Details
| Release Date: | 2022-08-24 |
Description
A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible.
See more information about CVE-2021-4189 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: | 5.3 | Base Metrics: | AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Access Vector: | Network | Attack Complexity: | Low |
| Privileges Required: | None | User Interaction: | None |
| Scope: | Unchanged | Confidentiality Impact: | Low |
| Integrity Impact: | None | Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (Cython) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (PyYAML) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (babel) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (numpy) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (pytest) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-PyMySQL) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-attrs) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-backports) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-backports-ssl_match_hostname) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-chardet) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-coverage) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-dns) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-docs) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-docutils) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-funcsigs) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-idna) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-ipaddress) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-jinja2) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-lxml) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-markupsafe) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-mock) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-nose) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-pluggy) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-psycopg2) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-py) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-pygments) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-pymongo) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-pysocks) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-pytest-mock) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-requests) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-setuptools_scm) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-sqlalchemy) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-urllib3) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-virtualenv) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python-wheel) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python2) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python2-pip) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python2-rpm-macros) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python2-setuptools) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python2-six) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (python3) | ELSA-2022-1986 | 2022-05-17 |
| Oracle Linux version 8 (pytz) | ELSA-2022-1821 | 2022-05-17 |
| Oracle Linux version 8 (scipy) | ELSA-2022-1821 | 2022-05-17 |
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
