GSD-2021-46880

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.
Aliases
Aliases
CVE-2021-46880
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{
  "GSD": {
    "alias": "CVE-2021-46880",
    "id": "GSD-2021-46880"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-46880"
      ],
      "details": "x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.",
      "id": "GSD-2021-46880",
      "modified": "2023-12-13T01:23:32.316334Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-46880",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
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              "vendor_name": "n/a"
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            "value": "x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded."
          }
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      "references": {
        "reference_data": [
          {
            "name": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.4.2-relnotes.txt",
            "refsource": "MISC",
            "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.4.2-relnotes.txt"
          },
          {
            "name": "https://github.com/openbsd/src/commit/3f851282810fa0ab4b90b3b1ecec2e8717ef16f8",
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            "url": "https://github.com/openbsd/src/commit/3f851282810fa0ab4b90b3b1ecec2e8717ef16f8"
          },
          {
            "name": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/006_x509.patch.sig",
            "refsource": "MISC",
            "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/006_x509.patch.sig"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20230517-0006/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20230517-0006/"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c3.4.2",
          "affected_versions": "All versions before 3.4.2",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2023-05-17",
          "description": "x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.",
          "fixed_versions": [
            "3.4.2"
          ],
          "identifier": "CVE-2021-46880",
          "identifiers": [
            "CVE-2021-46880"
          ],
          "not_impacted": "All versions starting from 3.4.2",
          "package_slug": "conan/libressl",
          "pubdate": "2023-04-15",
          "solution": "Upgrade to version 3.4.2 or above.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-46880",
            "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/006_x509.patch.sig",
            "https://github.com/openbsd/src/commit/3f851282810fa0ab4b90b3b1ecec2e8717ef16f8",
            "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.4.2-relnotes.txt"
          ],
          "uuid": "136c528d-bcce-4ce8-a542-6cc76d3f31dc"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.4.2",
                "vulnerable": true
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            "operator": "OR"
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          "ID": "CVE-2021-46880"
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        "description": {
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              "value": "x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/006_x509.patch.sig",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/006_x509.patch.sig"
            },
            {
              "name": "https://github.com/openbsd/src/commit/3f851282810fa0ab4b90b3b1ecec2e8717ef16f8",
              "refsource": "MISC",
              "tags": [
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            },
            {
              "name": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.4.2-relnotes.txt",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.4.2-relnotes.txt"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20230517-0006/",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://security.netapp.com/advisory/ntap-20230517-0006/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-05-17T20:15Z",
      "publishedDate": "2023-04-15T00:15Z"
    }
  }
}


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