{
  "cveId": "CVE-2023-3389",
  "url": "https://patchblox.com/security/cve/CVE-2023-3389",
  "summary": "CVE-2023-3389 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-3389, released June 28, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege esc...",
  "description": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.  Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.  We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and\u00A00e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).",
  "published": "2023-06-28T20:15:09Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00669,
  "epssPercentile": 0.52192,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2023-3389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3389",
      "released": "2023-06-28T20:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2023-3389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3389",
      "released": "2023-06-28T20:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.2-1",
      "fix": "DEBIAN-CVE-2023-3389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3389",
      "released": "2023-06-28T20:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}