{
  "cveId": "CVE-2023-52509",
  "url": "https://patchblox.com/security/cve/CVE-2023-52509",
  "summary": "CVE-2023-52509 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52509, released March 2, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ravb: Fix use-after-free issue in ravb_tx_timeou...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ravb: Fix use-after-free issue in ravb_tx_timeout_work()  The ravb_stop() should call cancel_work_sync(). Otherwise, ravb_tx_timeout_work() is possible to use the freed priv after ravb_remove() was called like below:  CPU0\t\t\tCPU1 \t\t\travb_tx_timeout() ravb_remove() unregister_netdev() free_netdev(ndev) // free priv \t\t\travb_tx_timeout_work() \t\t\t// use priv  unregister_netdev() will call .ndo_stop() so that ravb_stop() is called. And, after phy_stop() is called, netif_carrier_off() is also called. So that .ndo_tx_timeout() will not be called after phy_stop().",
  "published": "2024-03-02T22:15:47Z",
  "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": 0.00244,
  "epssPercentile": 0.15702,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.64-1",
      "fix": "DEBIAN-CVE-2023-52509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52509",
      "released": "2024-03-02T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.5.8-1",
      "fix": "DEBIAN-CVE-2023-52509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52509",
      "released": "2024-03-02T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.5.8-1",
      "fix": "DEBIAN-CVE-2023-52509",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52509",
      "released": "2024-03-02T22:15:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}