ubuntu-cve-2021-43306
Vulnerability from osv_ubuntu
Published
2022-06-02 14:15
Modified
2026-05-08 09:50
Summary
Details

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "drupal7-mod-civicrm",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "4.7.1+dfsg-2ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@4.7.1+dfsg-2ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.1+dfsg-1",
        "4.7.1+dfsg-2",
        "4.7.1+dfsg-2ubuntu1",
        "4.7.1+dfsg-2ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "4.7.30+dfsg-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@4.7.30+dfsg-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.7.23+dfsg-1ubuntu1",
        "4.7.24+dfsg-1ubuntu1",
        "4.7.30+dfsg-1ubuntu1",
        "4.7.30+dfsg-1ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "5.21.2+dfsg-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@5.21.2+dfsg-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.11.0+dfsg-1",
        "5.18.1+dfsg-1",
        "5.20.3+dfsg-1",
        "5.21.0+dfsg-1",
        "5.21.1+dfsg-1",
        "5.21.2+dfsg-1",
        "5.21.2+dfsg-1ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "civicrm-common",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          },
          {
            "binary_name": "civicrm-l10n",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          },
          {
            "binary_name": "wordpress-civicrm",
            "binary_version": "5.33.2+dfsg1-1ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "civicrm",
        "purl": "pkg:deb/ubuntu/civicrm@5.33.2+dfsg1-1ubuntu1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.33.2+dfsg1-1",
        "5.33.2+dfsg1-1build1",
        "5.33.2+dfsg1-1ubuntu1",
        "5.33.2+dfsg1-1ubuntu1+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method",
  "id": "UBUNTU-CVE-2021-43306",
  "modified": "2026-05-08T09:50:25Z",
  "published": "2022-06-02T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-43306"
    },
    {
      "type": "REPORT",
      "url": "https://research.jfrog.com/vulnerabilities/jquery-validation-redos-xray-211348/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/jquery-validation/jquery-validation/commit/69cb17ed774b427f7e2ffcdf197968231725c30e"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-43306"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-43306"
  ]
}



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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.

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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