{
  "fix": "sudo 1.8.21p2-3ubuntu1.4",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-sudo-1.8.21p2-3ubuntu1.4",
  "summary": "sudo 1.8.21p2-3ubuntu1.4, released January 26, 2021, fixes 2 CVEs in sudo. One of them is being exploited (CVE-2021-3156); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "sudo 1.8.21p2-3ubuntu1.4 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2021-01-26T10:00:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2021-3156, exploited (CISA KEV)",
  "supported": false,
  "cveCount": 2,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.99962,
  "maxCvss": 7.8,
  "appliesTo": [
    {
      "product": "sudo",
      "productUrl": "https://patchblox.com/security/product/linux/sudo",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.8.21p2-3ubuntu1.4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-3156",
      "url": "https://patchblox.com/security/cve/CVE-2021-3156",
      "title": "sudo: Resolves: rhbz#1917732",
      "priority": "Patch now",
      "severity": "IMPORTANT",
      "cvss": 7.8,
      "epss": 0.99962,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23239",
      "url": "https://patchblox.com/security/cve/CVE-2021-23239",
      "title": "libnss-sudo: The sudoedit personality of Sudo before 1.9.5 may allow a localunprivileged user to perform arbitrary directory-exist...",
      "priority": "Routine",
      "severity": "Low",
      "cvss": 2.5,
      "epss": 0.01001,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T13:47:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}