CVE-2024-40896
Vulnerability from cvelistv5
Published
2024-12-23 00:00
Modified
2024-12-24 02:11
Severity ?
Summary
In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting "checked"). This makes classic XXE attacks possible.
Impacted products
Vendor Product Version
Show details on NVD website


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  "containers": {
    "adp": [
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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              "content": {
                "id": "CVE-2024-40896",
                "options": [
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                    "Exploitation": "none"
                  },
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                  },
                  {
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                  }
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                "role": "CISA Coordinator",
                "timestamp": "2024-12-24T02:10:22.590277Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2024-12-24T02:11:06.747Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libxml2",
          "vendor": "libxml2",
          "versions": [
            {
              "lessThan": "2.11.9",
              "status": "affected",
              "version": "2.11.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.12.9",
              "status": "affected",
              "version": "2.12.0",
              "versionType": "semver"
            },
            {
              "lessThan": "2.13.3",
              "status": "affected",
              "version": "2.13.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting \"checked\"). This makes classic XXE attacks possible."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611 Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-23T17:21:42.188Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/issues/761"
        },
        {
          "url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/1a8932303969907f6572b1b6aac4081c56adb5c6"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-40896",
    "datePublished": "2024-12-23T00:00:00",
    "dateReserved": "2024-07-12T00:00:00",
    "dateUpdated": "2024-12-24T02:11:06.747Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40896\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-12-23T17:15:08.400\",\"lastModified\":\"2024-12-24T03:15:06.727\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In libxml2 2.11 before 2.11.9, 2.12 before 2.12.9, and 2.13 before 2.13.3, the SAX parser can produce events for external entities even if custom SAX handlers try to override entity content (by setting \\\"checked\\\"). This makes classic XXE attacks possible.\"},{\"lang\":\"es\",\"value\":\"En libxml2 2.11 anterior a 2.11.9, 2.12 anterior a 2.12.9 y 2.13 anterior a 2.13.3, el analizador SAX puede producir eventos para entidades externas incluso si los controladores SAX personalizados intentan anular el contenido de la entidad (estableciendo \\\"marcado\\\"). Esto hace posibles los ataques XXE cl\u00e1sicos.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-611\"}]}],\"references\":[{\"url\":\"https://gitlab.gnome.org/GNOME/libxml2/-/commit/1a8932303969907f6572b1b6aac4081c56adb5c6\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://gitlab.gnome.org/GNOME/libxml2/-/issues/761\",\"source\":\"cve@mitre.org\"}]}}"
  }
}


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