{
  "cveId": "CVE-2021-3978",
  "url": "https://patchblox.com/security/cve/CVE-2021-3978",
  "summary": "CVE-2021-3978 is fixed in cfrpki on 1 platform by DEBIAN-CVE-2021-3978 (version 1.4.2-1), released January 29, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "cfrpki: When copying files with rsync, octorpki uses the \u0022-a\u0022 flag 0, which forces rsync to copy binaries with the suid bit s...",
  "description": "When copying files with rsync, octorpki uses the \u0022-a\u0022 flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service ) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.",
  "published": "2025-01-29T10:15:07Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "epss": 0.00144,
  "epssPercentile": 0.03699,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cfrpki",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.4.2-1",
      "fix": "DEBIAN-CVE-2021-3978",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-3978",
      "released": "2025-01-29T10:15:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}