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CVE-2020-14422 (GCVE-0-2020-14422)

Vulnerability from cvelistv5 – Published: 2020-06-18 00:00 – Updated: 2024-08-04 12:46
VLAI
Summary
Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12; v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://bugs.python.org/issue41004
https://github.com/python/cpython/pull/20956
http://lists.opensuse.org/opensuse-security-annou… vendor-advisory
http://lists.opensuse.org/opensuse-security-annou… vendor-advisory
https://lists.debian.org/debian-lts-announce/2020… mailing-list
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
http://lists.opensuse.org/opensuse-security-annou… vendor-advisory
http://lists.opensuse.org/opensuse-security-annou… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://usn.ubuntu.com/4428-1/ vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://security.gentoo.org/glsa/202008-01 vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://www.oracle.com/security-alerts/cpujan2021.html
https://security.netapp.com/advisory/ntap-2020072…
https://lists.debian.org/debian-lts-announce/2023… mailing-list
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          },
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            "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-330"
              },
              {
                "lang": "en",
                "value": "CWE-682"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T11:33:43+00:00",
      "cve": "CVE-2020-14422",
      "id": "CVE-2020-14422",
      "initial_release_date": "2020-06-18T00:00:00+00:00",
      "product_status:fixed": "707",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "38",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "python: DoS via inefficiency in IPv{4,6}Interface classes",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-14422.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-02T02:30:38Z",
      "cve": "CVE-2020-14422",
      "id": "CVE-2020-14422",
      "initial_release_date": "2023-02-15T03:57:28Z",
      "product_status:known_affected": "378",
      "product_status:known_not_affected": "394",
      "product_status:recommended": "968",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-14422",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-14422.json",
      "version": "39"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.