usn-4754-1
Vulnerability from osv_ubuntu
Published
2021-02-25 12:05
Modified
2026-04-22 07:36
Summary
python2.7, python3.4, python3.5, python3.6, python3.8 vulnerabilities
Details

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service. (CVE-2020-27619, CVE-2021-3177)

References
To clipboard 

{
  "affected": [
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        "3.6.4-4",
        "3.6.5~rc1-1",
        "3.6.5-3",
        "3.6.6-1~18.04",
        "3.6.7-1~18.04",
        "3.6.8-1~18.04.1",
        "3.6.8-1~18.04.2",
        "3.6.8-1~18.04.3",
        "3.6.9-1~18.04",
        "3.6.9-1~18.04ubuntu1",
        "3.6.9-1~18.04ubuntu1.1",
        "3.6.9-1~18.04ubuntu1.3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-27619",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-3177",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "idle-python3.8",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "libpython3.8",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "libpython3.8-minimal",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "libpython3.8-stdlib",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "libpython3.8-testsuite",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "python3.8",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "python3.8-examples",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "python3.8-minimal",
            "binary_version": "3.8.5-1~20.04.2"
          },
          {
            "binary_name": "python3.8-venv",
            "binary_version": "3.8.5-1~20.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "python3.8",
        "purl": "pkg:deb/ubuntu/python3.8@3.8.5-1~20.04.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.8.5-1~20.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.0-1",
        "3.8.0-2",
        "3.8.0-3",
        "3.8.0-4",
        "3.8.0-5",
        "3.8.1-2ubuntu3",
        "3.8.2~rc1-1ubuntu1",
        "3.8.2-1",
        "3.8.2-1ubuntu1",
        "3.8.2-1ubuntu1.1",
        "3.8.2-1ubuntu1.2",
        "3.8.5-1~20.04"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that Python incorrectly handled certain inputs.\nAn attacker could possibly use this issue to execute arbitrary code\nor cause a denial of service. (CVE-2020-27619, CVE-2021-3177)\n",
  "id": "USN-4754-1",
  "modified": "2026-04-22T07:36:59Z",
  "published": "2021-02-25T12:05:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4754-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-27619"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3177"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "python2.7, python3.4, python3.5, python3.6, python3.8 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-27619",
    "UBUNTU-CVE-2021-3177"
  ]
}



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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.