{
  "GSD": {
    "alias": "CVE-2023-43622",
    "id": "GSD-2023-43622"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-43622"
      ],
      "details": "An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known \"slow loris\" attack pattern.\nThis has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout.\n\nThis issue affects Apache HTTP Server: from 2.4.55 through 2.4.57.\n\nUsers are recommended to upgrade to version 2.4.58, which fixes the issue.\n\n",
      "id": "GSD-2023-43622",
      "modified": "2023-12-13T01:20:44.565708Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2023-43622",
        "STATE": "PUBLIC"
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      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Apache HTTP Server",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "2.4.55",
                          "version_value": "2.4.57"
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                    }
                  }
                ]
              },
              "vendor_name": "Apache Software Foundation"
            }
          ]
        }
      },
      "credits": [
        {
          "lang": "en",
          "value": "Prof. Sven Dietrich (City University of New York)"
        },
        {
          "lang": "en",
          "value": "Isa Jafarov (City University of New York)"
        },
        {
          "lang": "en",
          "value": "Prof. Heejo Lee (Korea University)"
        },
        {
          "lang": "en",
          "value": "Choongin Lee (Korea University)"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known \"slow loris\" attack pattern.\nThis has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout.\n\nThis issue affects Apache HTTP Server: from 2.4.55 through 2.4.57.\n\nUsers are recommended to upgrade to version 2.4.58, which fixes the issue.\n\n"
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.1.0-dev"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-400",
                "lang": "eng",
                "value": "CWE-400 Uncontrolled Resource Consumption"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://httpd.apache.org/security/vulnerabilities_24.html",
            "refsource": "MISC",
            "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20231027-0011/",
            "refsource": "MISC",
            "url": "https://security.netapp.com/advisory/ntap-20231027-0011/"
          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.4.58",
                "versionStartIncluding": "2.4.55",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
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      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2023-43622"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "value": "An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known \"slow loris\" attack pattern.\nThis has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout.\n\nThis issue affects Apache HTTP Server: from 2.4.55 through 2.4.57.\n\nUsers are recommended to upgrade to version 2.4.58, which fixes the issue.\n\n"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "lang": "en",
                  "value": "CWE-400"
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              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://httpd.apache.org/security/vulnerabilities_24.html",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20231027-0011/",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20231027-0011/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2023-11-01T18:11Z",
      "publishedDate": "2023-10-23T07:15Z"
    }
  }
}