{
  "cveId": "CVE-2023-52389",
  "url": "https://patchblox.com/security/cve/CVE-2023-52389",
  "summary": "CVE-2023-52389 is fixed in poco on 1 platform, first by DEBIAN-CVE-2023-52389, released January 27, 2024. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "poco: UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco...",
  "description": "UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.",
  "published": "2024-01-27T03:15:07Z",
  "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": 0.00851,
  "epssPercentile": 0.58443,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "poco",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "1.10.0-6\u002Bdeb11u2",
      "fix": "DLA-4024-1",
      "url": "https://patchblox.com/security/fix/linux/dla-4024-1",
      "released": "2025-01-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "poco",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.11.0-3\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-52389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52389",
      "released": "2024-01-27T03:15:07Z"
    },
    {
      "platform": "linux",
      "product": "poco",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.13.0-6",
      "fix": "DEBIAN-CVE-2023-52389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52389",
      "released": "2024-01-27T03:15:07Z"
    },
    {
      "platform": "linux",
      "product": "poco",
      "release": "Debian 14",
      "fixedVersion": "1.13.0-6",
      "fix": "DEBIAN-CVE-2023-52389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52389",
      "released": "2024-01-27T03:15:07Z"
    }
  ],
  "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"
  }
}