{
  "cveId": "CVE-2021-31684",
  "url": "https://patchblox.com/security/cve/CVE-2021-31684",
  "summary": "CVE-2021-31684 is fixed in libjson-smart-java on 1 platform, first by libjson-smart-java 2.2-2ubuntu0.18.04.1, released March 21, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libjson-smart-java: A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 whic...",
  "description": "A vulnerability was discovered in the indexOf function of JSONParserByteArray in JSON Smart versions 1.3 and 2.4 which causes a denial of service (DOS) via a crafted web request.",
  "published": "2021-06-01T13:15:00Z",
  "severity": "Medium",
  "epss": 0.02281,
  "epssPercentile": 0.83262,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libjson-smart-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.2-2ubuntu0.18.04.1",
      "fix": "libjson-smart-java 2.2-2ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libjson-smart-java-2.2-2ubuntu0.18.04.1",
      "released": "2023-03-21T23:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libjson-smart-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.2-2ubuntu0.20.04.1",
      "fix": "libjson-smart-java 2.2-2ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libjson-smart-java-2.2-2ubuntu0.20.04.1",
      "released": "2023-03-21T23:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libjson-smart-java",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.2-2ubuntu0.22.04.1",
      "fix": "libjson-smart-java 2.2-2ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libjson-smart-java-2.2-2ubuntu0.22.04.1",
      "released": "2023-03-21T23:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}