FKIE_CVE-2021-36773

Vulnerability from fkie_nvd - Published: 2021-07-18 04:15 - Updated: 2024-11-21 06:14
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).
References
cve@mitre.orghttps://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adocExploit, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/06/msg00024.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://news.ycombinator.com/item?id=27833752Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adocExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/06/msg00024.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=27833752Issue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
sciruby nmatrix *
ublockorigin ublock_origin *
umatrix_project umatrix *
debian debian_linux 9.0
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sciruby:nmatrix:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0A335ADE-C257-42EE-963F-9B2A9A67AC31",
              "versionEndExcluding": "4.4.9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ublockorigin:ublock_origin:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "07A8F0D7-0E09-4BCF-8F2C-AB552732F563",
              "versionEndExcluding": "1.36.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:umatrix_project:umatrix:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D3550549-705D-487D-847A-6A5AE34F4056",
              "versionEndExcluding": "1.4.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality)."
    },
    {
      "lang": "es",
      "value": "uBlock Origin versiones anteriores a 1.36.2 y nMatrix versiones anteriores a 4.4.9, admiten una profundidad arbitraria de anidaci\u00f3n de par\u00e1metros para un bloqueo estricto, lo que permite que los sitios web dise\u00f1ados causar una denegaci\u00f3n de servicio (recursividad ilimitada que puede desencadenar el consumo de memoria y la p\u00e9rdida de toda la funcionalidad de bloqueo)"
    }
  ],
  "id": "CVE-2021-36773",
  "lastModified": "2024-11-21T06:14:04.060",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-07-18T04:15:08.110",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00024.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://news.ycombinator.com/item?id=27833752"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/vtriolet/writings/blob/main/posts/2021/ublock_origin_and_umatrix_denial_of_service.adoc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00024.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://news.ycombinator.com/item?id=27833752"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-674"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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