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        "providerMetadata": {
          "dateUpdated": "2024-08-03T01:34:49.843Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "OpenSSL Advisory",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.openssl.org/news/secadv/20230207.txt"
          },
          {
            "name": "3.0.8 git commit",
            "tags": [
              "patch",
              "x_transferred"
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            "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc"
          },
          {
            "tags": [
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            "url": "https://security.gentoo.org/glsa/202402-08"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
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              "lessThan": "3.0.8",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Corey Bonnell from Digicert"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Viktor Dukhovni"
        }
      ],
      "datePublic": "2023-02-07T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "value": "A read buffer overrun can be triggered in X.509 certificate verification,\u003cbr\u003especifically in name constraint checking. Note that this occurs\u003cbr\u003eafter certificate chain signature verification and requires either a\u003cbr\u003eCA to have signed the malicious certificate or for the application to\u003cbr\u003econtinue certificate verification despite failure to construct a path\u003cbr\u003eto a trusted issuer.\u003cbr\u003e\u003cbr\u003eThe read buffer overrun might result in a crash which could lead to\u003cbr\u003ea denial of service attack. In theory it could also result in the disclosure\u003cbr\u003eof private memory contents (such as private keys, or sensitive plaintext)\u003cbr\u003ealthough we are not aware of any working exploit leading to memory\u003cbr\u003econtents disclosure as of the time of release of this advisory.\u003cbr\u003e\u003cbr\u003eIn a TLS client, this can be triggered by connecting to a malicious\u003cbr\u003eserver. In a TLS server, this can be triggered if the server requests\u003cbr\u003eclient authentication and a malicious client connects.\u003cbr\u003e\u003cbr\u003e"
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          "value": "A read buffer overrun can be triggered in X.509 certificate verification,\nspecifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a\nCA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path\nto a trusted issuer.\n\nThe read buffer overrun might result in a crash which could lead to\na denial of service attack. In theory it could also result in the disclosure\nof private memory contents (such as private keys, or sensitive plaintext)\nalthough we are not aware of any working exploit leading to memory\ncontents disclosure as of the time of release of this advisory.\n\nIn a TLS client, this can be triggered by connecting to a malicious\nserver. In a TLS server, this can be triggered if the server requests\nclient authentication and a malicious client connects.\n\n"
        }
      ],
      "metrics": [
        {
          "format": "other",
          "other": {
            "content": {
              "text": "Moderate"
            },
            "type": "https://www.openssl.org/policies/secpolicy.html"
          }
        }
      ],
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          "descriptions": [
            {
              "description": "read buffer overrun ",
              "lang": "en"
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        "dateUpdated": "2023-02-24T14:53:08.485Z",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
      },
      "references": [
        {
          "name": "OpenSSL Advisory",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.openssl.org/news/secadv/20230207.txt"
        },
        {
          "name": "3.0.8 git commit",
          "tags": [
            "patch"
          ],
          "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc"
        },
        {
          "url": "https://security.gentoo.org/glsa/202402-08"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "X.509 Name Constraints Read Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
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  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2022-4203",
    "datePublished": "2023-02-24T14:53:08.485Z",
    "dateReserved": "2022-11-29T10:00:42.027Z",
    "dateUpdated": "2024-08-03T01:34:49.843Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1"
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