Vulnerability-Lookup

OESA-2022-1566 (CVE-2022-0391)

Vulnerability from osv_openeuler – Published: 2022-03-07 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

python3 security update

Details

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.

Security Fix(es):

A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.(CVE-2022-0391)

An attacker could exploit this vulnerability to set up a malicious FTP server that could trick an FTP client into connecting back to a given IP address and port. This can cause the FTP client to scan the port.(CVE-2021-4189)

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2022-0391	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-4189	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "python3-devel-3.7.9-20.oe1.aarch64.rpm",
          "python3-debuginfo-3.7.9-20.oe1.aarch64.rpm",
          "python3-debugsource-3.7.9-20.oe1.aarch64.rpm",
          "python3-debug-3.7.9-20.oe1.aarch64.rpm",
          "python3-3.7.9-20.oe1.aarch64.rpm"
        ],
        "noarch": [
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          "python3-devel-3.7.9-20.oe1.x86_64.rpm",
          "python3-debuginfo-3.7.9-20.oe1.x86_64.rpm",
          "python3-3.7.9-20.oe1.x86_64.rpm",
          "python3-debug-3.7.9-20.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "python3",
        "purl": "pkg:rpm/openEuler/python3\u0026distro=openEuler-20.03-LTS-SP1"
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  "database_specific": {
    "severity": "Medium"
  },
  "details": "Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C++ (or other languages, depending on the chosen implementation). Python is also usable as an extension language for applications written in other languages that need easy-to-use scripting or automation interfaces.\r\n\r\n\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like \u0026apos;\\r\u0026apos; and \u0026apos;\\n\u0026apos; in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.(CVE-2022-0391)\r\n\r\nAn attacker could exploit this vulnerability to set up a malicious FTP server that could trick an FTP client into connecting back to a given IP address and port. This can cause the FTP client to scan the port.(CVE-2021-4189)",
  "id": "OESA-2022-1566",
  "modified": "2026-08-06T11:04:50Z",
  "published": "2022-03-07T11:04:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1566"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0391"
    },
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4189"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "python3 security update",
  "upstream": [
    "CVE-2022-0391",
    "CVE-2021-4189"
  ]
}

CVE-2021-4189 (GCVE-0-2021-4189)

Vulnerability from cvelistv5 – Published: 2022-08-24 00:00 – Updated: 2025-12-17 21:36

Summary

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.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-25 14:59 UTC

CWE

Not-Known
CWE-252 - Unchecked Return Value

Assigner

redhat redhat root

References

10 references

URL	Tags
https://bugs.python.org/issue43285
https://python-security.readthedocs.io/vuln/ftpli…
https://github.com/python/cpython/commit/0ab152c6…
https://security-tracker.debian.org/tracker/CVE-2…
https://bugzilla.redhat.com/show_bug.cgi?id=2036020
https://access.redhat.com/security/cve/CVE-2021-4189
https://security.netapp.com/advisory/ntap-2022110…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
n/a	python	Affected: Fixed in python 3.6.14, python 3.7.11, python 3.8.9, python 3.9.3, python 3.10.0

Show details on NVD website

JSON

To clipboard

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CVE-2022-0391 (GCVE-0-2022-0391)

Vulnerability from cvelistv5 – Published: 2022-02-09 00:00 – Updated: 2025-12-17 20:58

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-17 20:58 UTC

CWE

CWE-74

Assigner

redhat redhat root

References

9 references

URL	Tags
https://bugs.python.org/issue43882
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
https://security.netapp.com/advisory/ntap-2022022…
https://security.gentoo.org/glsa/202305-02	vendor-advisory
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
n/a	python	Affected: python 3.10.0b1, python 3.9.5, python 3.8.11, python 3.7.11, python 3.6.14

Show details on NVD website

JSON

To clipboard

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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-20T21:06:09.930Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugs.python.org/issue43882"
        },
        {
          "name": "FEDORA-2022-ef99a016f6",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDBDBAU6HUPZHISBOARTXZ5GKHF2VH5U/"
        },
        {
          "name": "FEDORA-2022-18ad73aba6",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSD2YBXP3ZF44E44QMIIAR5VTO35KTRB/"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20220225-0009/"
        },
        {
          "name": "GLSA-202305-02",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202305-02"
        },
        {
          "name": "[debian-lts-announce] 20230920 [SECURITY] [DLA 3575-1] python2.7 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00022.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2022-0391",
    "datePublished": "2022-02-09T00:00:00.000Z",
    "dateReserved": "2022-01-27T00:00:00.000Z",
    "dateUpdated": "2025-12-17T20:58:43.991Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2022-1566 (CVE-2022-0391)

CVE-2021-4189 (GCVE-0-2021-4189)

CVE-2022-0391 (GCVE-0-2022-0391)

Tags

Sightings

Nomenclature

Related by attack behaviour