{
  "fix": "golang-github-snapcore-snapd-dev 2.54.3\u002B18.04",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-golang-github-snapcore-snapd-dev-2.54.3-18.04",
  "summary": "golang-github-snapcore-snapd-dev 2.54.3\u002B18.04, released February 17, 2022, fixes 4 CVEs in golang-github-snapcore-snapd-dev. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "golang-github-snapcore-snapd-dev 2.54.3\u002B18.04 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2022-02-17T09:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-44731, high severity",
  "supported": false,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00952,
  "maxCvss": 8.8,
  "appliesTo": [
    {
      "product": "golang-github-snapcore-snapd-dev",
      "productUrl": "https://patchblox.com/security/product/linux/golang-github-snapcore-snapd-dev",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.54.3\u002B18.04",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-44731",
      "url": "https://patchblox.com/security/cve/CVE-2021-44731",
      "title": "snapd: A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00952,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-4120",
      "url": "https://patchblox.com/security/cve/CVE-2021-4120",
      "title": "snapd: snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the abil...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00437,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-44730",
      "url": "https://patchblox.com/security/cve/CVE-2021-44730",
      "title": "snapd: snapd - security update",
      "priority": "High",
      "severity": "high",
      "cvss": 8.8,
      "epss": 0.00351,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3155",
      "url": "https://patchblox.com/security/cve/CVE-2021-3155",
      "title": "snapd: snapd 2.54.2 and earlier created ~/snap directories in user home directories without specifying owner-only permissions",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.5,
      "epss": 0.0026,
      "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"
  }
}