{
  "cveId": "CVE-2021-31872",
  "url": "https://patchblox.com/security/cve/CVE-2021-31872",
  "summary": "CVE-2021-31872 is fixed in 2 products on 1 platform, first by klibc-utils 2.0.4-9ubuntu2.1, released April 29, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "klibc-utils: An issue was discovered in klibc before 2.0.9",
  "description": "An issue was discovered in klibc before 2.0.9. Multiple possible integer overflows in the cpio command on 32-bit systems may result in a buffer overflow or other security impact.",
  "published": "2021-04-29T23:15:00Z",
  "severity": "Low",
  "epss": 0.02076,
  "epssPercentile": 0.81612,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "klibc-utils",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.0.4-9ubuntu2.1",
      "fix": "klibc-utils 2.0.4-9ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-klibc-utils-2.0.4-9ubuntu2.1",
      "released": "2021-04-29T23:15:00Z"
    },
    {
      "platform": "linux",
      "product": "klibc-utils",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.0.7-1ubuntu5.1",
      "fix": "klibc-utils 2.0.7-1ubuntu5.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-klibc-utils-2.0.7-1ubuntu5.1",
      "released": "2021-04-29T23:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libklibc",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.0.4-9ubuntu2.1",
      "fix": "libklibc 2.0.4-9ubuntu2.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libklibc-2.0.4-9ubuntu2.1",
      "released": "2021-04-29T23:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libklibc",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.0.7-1ubuntu5.1",
      "fix": "libklibc 2.0.7-1ubuntu5.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libklibc-2.0.7-1ubuntu5.1",
      "released": "2021-04-29T23:15:00Z"
    }
  ],
  "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"
  }
}