GSD-2018-19791

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the "bytes=0-,0-" substring.
Aliases
Aliases
CVE-2018-19791
To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-19791",
    "description": "The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the \"bytes=0-,0-\" substring.",
    "id": "GSD-2018-19791"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-19791"
      ],
      "details": "The server in LiteSpeed OpenLiteSpeed before 1.5.0 RC6 does not correctly handle requests for byte sequences, allowing an attacker to amplify the response size by requesting the entire response body repeatedly, as demonstrated by an HTTP Range header value beginning with the \"bytes=0-,0-\" substring.",
      "id": "GSD-2018-19791",
      "modified": "2023-12-13T01:22:38.718721Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2018-19791",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
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              "product": {
                "product_data": [
                  {
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                    "version": {
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          }
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      "references": {
        "reference_data": [
          {
            "name": "https://github.com/litespeedtech/openlitespeed/issues/117",
            "refsource": "MISC",
            "url": "https://github.com/litespeedtech/openlitespeed/issues/117"
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    },
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                "cpe_name": [],
                "vulnerable": true
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                "versionEndExcluding": "1.5.0",
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        "description": {
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            }
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          "reference_data": [
            {
              "name": "https://github.com/litespeedtech/openlitespeed/issues/117",
              "refsource": "MISC",
              "tags": [
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            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-02-05T16:10Z",
      "publishedDate": "2018-12-03T06:29Z"
    }
  }
}


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