{
  "fix": "libkrb5support0 1.16-2ubuntu0.4",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libkrb5support0-1.16-2ubuntu0.4",
  "summary": "libkrb5support0 1.16-2ubuntu0.4, released August 22, 2021, fixes 2 CVEs in libkrb5support0. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "libkrb5support0 1.16-2ubuntu0.4 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2021-08-22T22:15:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-36222, high severity",
  "supported": false,
  "cveCount": 2,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.10509,
  "maxCvss": 7.5,
  "appliesTo": [
    {
      "product": "libkrb5support0",
      "productUrl": "https://patchblox.com/security/product/linux/libkrb5support0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.16-2ubuntu0.4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-36222",
      "url": "https://patchblox.com/security/cve/CVE-2021-36222",
      "title": "krb5-devel: Fix KDC null deref on bad encrypted challenge",
      "priority": "High",
      "severity": "MODERATE",
      "cvss": 7.5,
      "epss": 0.10509,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-37750",
      "url": "https://patchblox.com/security/cve/CVE-2021-37750",
      "title": "krb5-devel: Fix KDC null deref on TGS inner body null server",
      "priority": "Routine",
      "severity": "MODERATE",
      "cvss": 6.5,
      "epss": 0.02505,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T19:49:26Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}