cve-2024-45403
Vulnerability from cvelistv5
Published
2024-10-11 14:28
Modified
2024-10-11 14:40
Severity ?
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.
References
security-advisories@github.comhttps://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562Patch
security-advisories@github.comhttps://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354cPatch
security-advisories@github.comhttps://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92Vendor Advisory
security-advisories@github.comhttps://h2o.examp1e.net/configure/http3_directives.htmlProduct
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-45403",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-11T14:40:44.124164Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-11T14:40:53.132Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "h2o",
          "vendor": "h2o",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 16b13eee8ad7895b4fe3fcbcabee53bd52782562, \u003c 1ed32b23f999acf0c5029f09c8525f93eb1d354c"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-617",
              "description": "CWE-617: Reachable Assertion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-11T14:28:35.262Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92"
        },
        {
          "name": "https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562"
        },
        {
          "name": "https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c"
        },
        {
          "name": "https://h2o.examp1e.net/configure/http3_directives.html",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://h2o.examp1e.net/configure/http3_directives.html"
        }
      ],
      "source": {
        "advisory": "GHSA-4xp5-3jhc-3m92",
        "discovery": "UNKNOWN"
      },
      "title": "H2O assertion failure when HTTP/3 requests are cancelled"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-45403",
    "datePublished": "2024-10-11T14:28:35.262Z",
    "dateReserved": "2024-08-28T20:21:32.803Z",
    "dateUpdated": "2024-10-11T14:40:53.132Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2024-06-18\", \"versionEndExcluding\": \"2024-09-04\", \"matchCriteriaId\": \"150B718B-AB9A-4FA0-AAFD-AB3E7CA96120\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.\"}, {\"lang\": \"es\", \"value\": \"h2o es un servidor HTTP compatible con HTTP/1.x, HTTP/2 y HTTP/3. Cuando h2o est\\u00e1 configurado como un proxy inverso y el cliente cancela las solicitudes HTTP/3, h2o puede bloquearse debido a un error de aserci\\u00f3n. Un atacante puede aprovechar el bloqueo para lanzar un ataque de denegaci\\u00f3n de servicio. De forma predeterminada, el servidor independiente h2o se reinicia autom\\u00e1ticamente, lo que minimiza el impacto. Sin embargo, las solicitudes HTTP que se atendieron simult\\u00e1neamente seguir\\u00e1n siendo interrumpidas. La vulnerabilidad se ha solucionado en el commit 1ed32b2. Los usuarios pueden desactivar el uso de HTTP/3 para mitigar el problema.\"}]",
      "id": "CVE-2024-45403",
      "lastModified": "2024-11-12T19:59:51.097",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security-advisories@github.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 3.7, \"baseSeverity\": \"LOW\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
      "published": "2024-10-11T15:15:05.123",
      "references": "[{\"url\": \"https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Patch\"]}, {\"url\": \"https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://h2o.examp1e.net/configure/http3_directives.html\", \"source\": \"security-advisories@github.com\", \"tags\": [\"Product\"]}]",
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"security-advisories@github.com\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-617\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-45403\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-10-11T15:15:05.123\",\"lastModified\":\"2024-11-12T19:59:51.097\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.\"},{\"lang\":\"es\",\"value\":\"h2o es un servidor HTTP compatible con HTTP/1.x, HTTP/2 y HTTP/3. Cuando h2o est\u00e1 configurado como un proxy inverso y el cliente cancela las solicitudes HTTP/3, h2o puede bloquearse debido a un error de aserci\u00f3n. Un atacante puede aprovechar el bloqueo para lanzar un ataque de denegaci\u00f3n de servicio. De forma predeterminada, el servidor independiente h2o se reinicia autom\u00e1ticamente, lo que minimiza el impacto. Sin embargo, las solicitudes HTTP que se atendieron simult\u00e1neamente seguir\u00e1n siendo interrumpidas. La vulnerabilidad se ha solucionado en el commit 1ed32b2. Los usuarios pueden desactivar el uso de HTTP/3 para mitigar el problema.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":3.7,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.2,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2024-06-18\",\"versionEndExcluding\":\"2024-09-04\",\"matchCriteriaId\":\"150B718B-AB9A-4FA0-AAFD-AB3E7CA96120\"}]}]}],\"references\":[{\"url\":\"https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://h2o.examp1e.net/configure/http3_directives.html\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\"]}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"H2O assertion failure when HTTP/3 requests are cancelled\", \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-617\", \"lang\": \"en\", \"description\": \"CWE-617: Reachable Assertion\", \"type\": \"CWE\"}]}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"LOW\", \"baseScore\": 3.7, \"baseSeverity\": \"LOW\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"version\": \"3.1\"}}], \"references\": [{\"name\": \"https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92\"}, {\"name\": \"https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562\"}, {\"name\": \"https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c\"}, {\"name\": \"https://h2o.examp1e.net/configure/http3_directives.html\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://h2o.examp1e.net/configure/http3_directives.html\"}], \"affected\": [{\"vendor\": \"h2o\", \"product\": \"h2o\", \"versions\": [{\"version\": \"\u003e= 16b13eee8ad7895b4fe3fcbcabee53bd52782562, \u003c 1ed32b23f999acf0c5029f09c8525f93eb1d354c\", \"status\": \"affected\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-10-11T14:28:35.262Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.\"}], \"source\": {\"advisory\": \"GHSA-4xp5-3jhc-3m92\", \"discovery\": \"UNKNOWN\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-45403\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-11T14:40:44.124164Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-11T14:40:48.151Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-45403\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"GitHub_M\", \"dateReserved\": \"2024-08-28T20:21:32.803Z\", \"datePublished\": \"2024-10-11T14:28:35.262Z\", \"dateUpdated\": \"2024-10-11T14:40:53.132Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.