{
  "cveId": "CVE-2018-19974",
  "url": "https://patchblox.com/security/cve/CVE-2018-19974",
  "summary": "CVE-2018-19974 is fixed in 2 products on 1 platform, first by libyara3 3.7.1-1ubuntu2\u002Besm1, released February 4, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libyara3: In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in li...",
  "description": "In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).",
  "published": "2018-12-17T11:29:00Z",
  "severity": "Medium",
  "epss": 0.01265,
  "epssPercentile": 0.69858,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libyara3",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.7.1-1ubuntu2\u002Besm1",
      "fix": "libyara3 3.7.1-1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libyara3-3.7.1-1ubuntu2-esm1",
      "released": "2022-02-04T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "yara",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.7.1-1ubuntu2\u002Besm1",
      "fix": "yara 3.7.1-1ubuntu2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-yara-3.7.1-1ubuntu2-esm1",
      "released": "2022-02-04T11:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}