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          "defaultStatus": "unaffected",
          "product": "Apache Tomcat",
          "vendor": "Apache Software Foundation",
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              "status": "affected",
              "version": "11.0.0-M1",
              "versionType": "semver"
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              "version": "10.1.0-M1",
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            {
              "lessThanOrEqual": "9.0.97",
              "status": "affected",
              "version": "9.0.0.M1",
              "versionType": "semver"
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        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "This vulnerability was first reported by Nacl, WHOAMI, Yemoli and Ruozhi."
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "This vulnerability was independently reported with a very helpful PoC by dawu@knownsec 404 team and Sunflower@knownsec 404 team"
        }
      ],
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              "value": "\u003cp\u003eTime-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.\u003c/p\u003e\u003cp\u003eThe mitigation for CVE-2024-50379 was incomplete.\u003c/p\u003e\u003cp\u003eUsers running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation \nparameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:\u003cbr\u003e- running on Java 8 or Java 11: the system property\u0026nbsp;sun.io.useCanonCaches must be explicitly set to false (it defaults to true)\u003cbr\u003e- running on Java 17: the\u0026nbsp;system property sun.io.useCanonCaches, if set, must be set to false\u0026nbsp;(it defaults to false)\u003cbr\u003e- running on Java 21 onwards: no further configuration is required\u0026nbsp;(the system property and the problematic cache have been removed)\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: var(--wht);\"\u003eTomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that\u0026nbsp;sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set\u0026nbsp;sun.io.useCanonCaches to false by default where it can.\u003c/span\u003e\u003c/p\u003e"
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        }
      ],
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-20T15:28:54.738Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-50379"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Tomcat: RCE due to TOCTOU issue in JSP compilation - CVE-2024-50379 mitigation was incomplete",
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    "assignerShortName": "apache",
    "cveId": "CVE-2024-56337",
    "datePublished": "2024-12-20T15:28:54.738Z",
    "dateReserved": "2024-12-20T11:16:29.949Z",
    "dateUpdated": "2024-12-20T15:28:54.738Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56337\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2024-12-20T16:15:24.260\",\"lastModified\":\"2024-12-20T16:15:24.260\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.\\n\\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.\\n\\nThe mitigation for CVE-2024-50379 was incomplete.\\n\\nUsers running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation \\nparameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:\\n- running on Java 8 or Java 11: the system property\u00a0sun.io.useCanonCaches must be explicitly set to false (it defaults to true)\\n- running on Java 17: the\u00a0system property sun.io.useCanonCaches, if set, must be set to false\u00a0(it defaults to false)\\n- running on Java 21 onwards: no further configuration is required\u00a0(the system property and the problematic cache have been removed)\\n\\nTomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that\u00a0sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set\u00a0sun.io.useCanonCaches to false by default where it can.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-367\"}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread/b2b9qrgjrz1kvo4ym8y2wkfdvwoq6qbp\",\"source\":\"security@apache.org\"},{\"url\":\"https://www.cve.org/CVERecord?id=CVE-2024-50379\",\"source\":\"security@apache.org\"}]}}"
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