ubuntu-cve-2020-36632
Vulnerability from osv_ubuntu
Published
2022-12-25 20:15
Modified
2026-05-20 14:52
Summary
Details

A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
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          },
          {
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          },
          {
            "binary_name": "libqt6webenginequick6",
            "binary_version": "6.2.4+dfsg-6ubuntu1"
          },
          {
            "binary_name": "libqt6webenginequickdelegatesqml6",
            "binary_version": "6.2.4+dfsg-6ubuntu1"
          },
          {
            "binary_name": "libqt6webenginewidgets6",
            "binary_version": "6.2.4+dfsg-6ubuntu1"
          },
          {
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          },
          {
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          },
          {
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          },
          {
            "binary_name": "qt6-image-formats-plugin-pdf",
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          },
          {
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      },
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    },
    {
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          },
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          },
          {
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          },
          {
            "binary_name": "qml6-module-qtquick-pdf",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
          },
          {
            "binary_name": "qml6-module-qtwebengine",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
          },
          {
            "binary_name": "qml6-module-qtwebengine-controlsdelegates",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
          },
          {
            "binary_name": "qt6-image-formats-plugin-pdf",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
          },
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            "binary_name": "qt6-webengine-dev-tools",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
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            "binary_name": "qt6-webengine-doc-html",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
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            "binary_name": "qt6-webengine-examples",
            "binary_version": "6.4.2-final+dfsg-12ubuntu9"
          }
        ]
      },
      "package": {
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        "name": "qt6-webengine",
        "purl": "pkg:deb/ubuntu/qt6-webengine@6.4.2-final+dfsg-12ubuntu9?arch=source\u0026distro=noble"
      },
      "ranges": [
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        "6.4.2-final+dfsg-12ubuntu7",
        "6.4.2-final+dfsg-12ubuntu9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libqt6pdf6",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "libqt6pdfquick6",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "libqt6pdfwidgets6",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "libqt6webengine6-data",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "libqt6webenginecore6",
            "binary_version": "6.9.2+dfsg-2"
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            "binary_version": "6.9.2+dfsg-2"
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          {
            "binary_name": "libqt6webenginequick6",
            "binary_version": "6.9.2+dfsg-2"
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            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "qml6-module-qtwebengine",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "qml6-module-qtwebengine-controlsdelegates",
            "binary_version": "6.9.2+dfsg-2"
          },
          {
            "binary_name": "qt6-image-formats-plugin-pdf",
            "binary_version": "6.9.2+dfsg-2"
          },
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            "binary_name": "qt6-webengine-dev-tools",
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            "binary_name": "qt6-webengine-examples",
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      "package": {
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      },
      "ranges": [
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            {
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      ],
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        "6.8.3+dfsg-0ubuntu2",
        "6.9.2+dfsg-2"
      ]
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    {
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        "binaries": [
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
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            "binary_version": "6.10.2+dfsg-1"
          },
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          },
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            "binary_version": "6.10.2+dfsg-1"
          },
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          },
          {
            "binary_name": "qt6-webengine-doc-html",
            "binary_version": "6.10.2+dfsg-1"
          },
          {
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            "binary_version": "6.10.2+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "qt6-webengine",
        "purl": "pkg:deb/ubuntu/qt6-webengine@6.10.2+dfsg-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.9.2+dfsg-2",
        "6.9.2+dfsg-4",
        "6.9.2+dfsg-4build1",
        "6.9.2+dfsg-4build2",
        "6.10.2+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes (\u0027prototype pollution\u0027). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.",
  "id": "UBUNTU-CVE-2020-36632",
  "modified": "2026-05-20T14:52:41Z",
  "published": "2022-12-25T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-36632"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hughsk/flat/commit/20ef0ef55dfa028caddaedbcb33efbdb04d18e13"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hughsk/flat/issues/105"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hughsk/flat/pull/106"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hughsk/flat/releases/tag/5.0.1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-36632"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "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"
    }
  ],
  "upstream": [
    "CVE-2020-36632"
  ]
}



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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.