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        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:21:17.737Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            "url": "https://github.com/cloudflare/quiche/security/advisories/GHSA-w3vp-jw9m-f9pm"
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            "url": "https://datatracker.ietf.org/doc/html/rfc9000#section-8.2"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageName": "cloudflare-quiche",
          "product": "quiche",
          "vendor": "Cloudflare",
          "versions": [
            {
              "lessThanOrEqual": "0.19.0",
              "status": "affected",
              "version": "0.15.0",
              "versionType": "semver"
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Marten Seemann "
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      "descriptions": [
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              "value": "quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption.\u003cbr\u003eQUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer\u0027s congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. \u003cbr\u003eQuiche versions greater than 0.19.0 address this problem."
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          "capecId": "CAPEC-130",
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              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
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        {
          "capecId": "CAPEC-272",
          "descriptions": [
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              "value": "CAPEC-272 Protocol Manipulation"
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
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          "format": "CVSS",
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              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-12T13:32:03.183Z",
        "orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
        "shortName": "cloudflare"
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      "references": [
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          "url": "https://github.com/cloudflare/quiche/security/advisories/GHSA-w3vp-jw9m-f9pm"
        },
        {
          "url": "https://datatracker.ietf.org/doc/html/rfc9000#section-8.2"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Unbounded queuing of path validation messages in cloudflare-quiche",
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  "cveMetadata": {
    "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513",
    "assignerShortName": "cloudflare",
    "cveId": "CVE-2023-6193",
    "datePublished": "2023-12-12T13:32:03.183Z",
    "dateReserved": "2023-11-17T14:39:07.534Z",
    "dateUpdated": "2024-08-02T08:21:17.737Z",
    "state": "PUBLISHED"
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