Vulnerability-Lookup

RHSA-2022:1986

Vulnerability from csaf_opensuse - Published: 2022-05-10 00:00 - Updated: 2026-09-20 11:20

Summary

security update for python3

Severity

Moderate

Notes

Title of the patch: security update for python3

Description of the patch: This security update provides a functional equivalent of RHSA-2022:1986. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2022:1986.

Patchnames: RHSA-2022:1986

CVE-2021-3737

6.5 (Medium)


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

Affected products

Recommended 14 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 8:platform-python-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:platform-python-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:platform-python-debug-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:platform-python-debug-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:platform-python-devel-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:platform-python-devel-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-idle-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-idle-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-libs-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-libs-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-test-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-test-0:3.6.8-45.el8.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-tkinter-0:3.6.8-45.el8.i686	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:python3-tkinter-0:3.6.8-45.el8.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2021-4189

5.3 (Medium)


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

Affected products

Recommended 14 products, the same list as for CVE-2021-3737

Threats

Impact moderate

References

9 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://www.suse.com/security/cve/CVE-2021-3737/	self
https://www.suse.com/security/cve/CVE-2021-4189/	self
https://www.suse.com/security/cve/CVE-2021-3737	external
https://bugzilla.suse.com/1189241	external
https://www.suse.com/security/cve/CVE-2021-4189	external
https://bugzilla.suse.com/1194146	external
https://bugzilla.suse.com/1265268	external

JSON

To clipboard

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CVE-2021-3737 (GCVE-0-2021-3737)

Vulnerability from cvelistv5 – Published: 2022-03-04 00:00 – Updated: 2025-12-17 21:32

Summary

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-17 21:32 UTC

CWE

CWE-835 - - Loop with Unreachable Exit Condition ('Infinite Loop'), CWE-400 - Uncontrolled Resource Consumption

Assigner

redhat redhat root Scorecard

References

12 references

URL	Tags
https://bugs.python.org/issue44022
https://github.com/python/cpython/pull/25916
https://bugzilla.redhat.com/show_bug.cgi?id=1995162
https://github.com/python/cpython/pull/26503
https://ubuntu.com/security/CVE-2021-3737
https://www.oracle.com/security-alerts/cpujul2022.html
https://python-security.readthedocs.io/vuln/urlli…
https://security.netapp.com/advisory/ntap-2022040…
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…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
n/a	python	Affected: Fixed in python v3.6.14, python v3.7.11, python v3.8.11, python v3.9.6, python v3.10.0b2

Show details on NVD website

JSON

To clipboard

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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 Scorecard

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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          {
            "descriptions": [
              {
                "cweId": "CWE-252",
                "description": "CWE-252 Unchecked Return Value",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-17T21:36:07.876Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in python 3.6.14, python 3.7.11, python 3.8.9, python 3.9.3, python 3.10.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Not-Known",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-30T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugs.python.org/issue43285"
        },
        {
          "url": "https://python-security.readthedocs.io/vuln/ftplib-pasv.html"
        },
        {
          "url": "https://github.com/python/cpython/commit/0ab152c6b5d95caa2dc1a30fa96e10258b5f188e"
        },
        {
          "url": "https://security-tracker.debian.org/tracker/CVE-2021-4189"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036020"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2021-4189"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20221104-0004/"
        },
        {
          "name": "[debian-lts-announce] 20230524 [SECURITY] [DLA 3432-1] python2.7 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html"
        },
        {
          "name": "[debian-lts-announce] 20230630 [SECURITY] [DLA 3477-1] python3.7 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-4189",
    "datePublished": "2022-08-24T00:00:00.000Z",
    "dateReserved": "2021-12-29T00:00:00.000Z",
    "dateUpdated": "2025-12-17T21:36:07.876Z",
    "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.

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

RHSA-2022:1986

CVE-2021-3737 (GCVE-0-2021-3737)

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

Tags

Sightings

Nomenclature

Related by attack behaviour