{
  "cveId": "CVE-2021-27419",
  "url": "https://patchblox.com/security/cve/CVE-2021-27419",
  "summary": "CVE-2021-27419 is fixed in uclibc on 1 platform by DEBIAN-CVE-2021-27419 (version 1.0.54-1), released May 3, 2022. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "uclibc: uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple",
  "description": "uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.",
  "published": "2022-05-03T21:15:08Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.01721,
  "epssPercentile": 0.7764,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "uclibc",
      "release": "Debian 14",
      "fixedVersion": "1.0.54-1",
      "fix": "DEBIAN-CVE-2021-27419",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-27419",
      "released": "2022-05-03T21:15:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}