CVE-2023-52907

MEDIUM EPSS 14.1%
Published Aug 21, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Wait for out_urb's 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)

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
14.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥3.1  –  <4.14.303
linuxlinux_kernel*≥4.15  –  <4.19.270
linuxlinux_kernel*≥4.20  –  <5.4.229
linuxlinux_kernel*≥5.5  –  <5.10.164
linuxlinux_kernel*≥5.11  –  <5.15.89
linuxlinux_kernel*≥5.16  –  <6.1.7
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any
linuxlinux_kernel6.2any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d
    Patch