{
  "cveId": "CVE-2023-52907",
  "url": "https://patchblox.com/security/cve/CVE-2023-52907",
  "summary": "CVE-2023-52907 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52907, released August 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  nfc: pn533: Wait for out_urb\u0027s completion in pn5...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  nfc: pn533: Wait for out_urb\u0027s completion in pn533_usb_send_frame()  Fix a use-after-free that occurs in hcd when in_urb sent from pn533_usb_send_frame() is completed earlier than out_urb. Its callback frees the skb data in pn533_send_async_complete() that is used as a transfer buffer of out_urb. Wait before sending in_urb until the callback of out_urb is called. To modify the callback of out_urb alone, separate the complete function of out_urb and ack_urb.  Found by a modified version of syzkaller.  BUG: KASAN: use-after-free in dummy_timer Call Trace:  memcpy (mm/kasan/shadow.c:65)  dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)  transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)  dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)  arch_static_branch (arch/x86/include/asm/jump_label.h:27)  static_key_false (include/linux/jump_label.h:207)  timer_expire_exit (include/trace/events/timer.h:127)  call_timer_fn (kernel/time/timer.c:1475)  expire_timers (kernel/time/timer.c:1519)  __run_timers (kernel/time/timer.c:1790)  run_timer_softirq (kernel/time/timer.c:1803)",
  "published": "2024-08-21T07:15:06Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00242,
  "epssPercentile": 0.15495,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2023-52907",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52907",
      "released": "2024-08-21T07:15:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2023-52907",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52907",
      "released": "2024-08-21T07:15:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.7-1",
      "fix": "DEBIAN-CVE-2023-52907",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52907",
      "released": "2024-08-21T07:15:06Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}