{
  "schema_version": "1.4.0",
  "id": "GHSA-7gr4-mrjx-cjx9",
  "modified": "2022-05-14T03:29:32Z",
  "published": "2022-05-14T03:29:32Z",
  "aliases": [
    "CVE-2018-8970"
  ],
  "details": "The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0 before 2.7.1 does not support a certain special case of a zero name length, which causes silent omission of hostname verification, and consequently allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. NOTE: the LibreSSL documentation indicates that this special case is supported, but the BoringSSL documentation does not.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8970"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libressl-portable/openbsd/commit/0654414afcce51a16d35d05060190a3ec4618d42"
    },
    {
      "type": "WEB",
      "url": "https://boringssl.googlesource.com/boringssl/+/e759a9cd84198613199259dbed401f4951747cff"
    },
    {
      "type": "WEB",
      "url": "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.1-relnotes.txt"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-03-24T21:29:00Z"
  }
}