{
  "cveId": "CVE-2021-3402",
  "url": "https://patchblox.com/security/cve/CVE-2021-3402",
  "summary": "CVE-2021-3402 is fixed in 2 products on 1 platform, first by libyara3 3.9.0-1ubuntu0.1~esm1, released February 4, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libyara3: An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier cou...",
  "description": "An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier could allow an attacker to either cause denial of service or information disclosure via a malicious Mach-O file. Affects all versions before libyara 4.0.4",
  "published": "2021-05-14T14:15:00Z",
  "severity": "Medium",
  "epss": 0.02201,
  "epssPercentile": 0.82627,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libyara3",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.9.0-1ubuntu0.1~esm1",
      "fix": "libyara3 3.9.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libyara3-3.9.0-1ubuntu0.1-esm1",
      "released": "2022-02-04T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "yara",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.9.0-1ubuntu0.1~esm1",
      "fix": "yara 3.9.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-yara-3.9.0-1ubuntu0.1-esm1",
      "released": "2022-02-04T11:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}