{
  "schema_version": "1.4.0",
  "id": "GHSA-rc58-rfcj-mcrr",
  "modified": "2022-05-13T01:30:24Z",
  "published": "2022-05-13T01:30:24Z",
  "aliases": [
    "CVE-2018-20340"
  ],
  "details": "Yubico libu2f-host 1.1.6 contains unchecked buffers in devs.c, which could enable a malicious token to exploit a buffer overflow. An attacker could use this to attempt to execute malicious code using a crafted USB device masquerading as a security token on a computer where the affected library is currently in use. It is not possible to perform this attack with a genuine YubiKey.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20340"
    },
    {
      "type": "WEB",
      "url": "https://blog.inhq.net/posts/yubico-libu2f-host-vuln-part1"
    },
    {
      "type": "WEB",
      "url": "https://developers.yubico.com/libu2f-host/Release_Notes.html"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2019/Feb/23"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202004-15"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4389"
    },
    {
      "type": "WEB",
      "url": "https://www.yubico.com/support/security-advisories/ysa-2019-01"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-21T16:00:00Z"
  }
}