Microsoft Windows Bluetooth AVDTP Protocol Integer Underflow Remote Code Execution Vulnerability

May 9th, 2024
ZDI-24-439 ZDI-CAN-20464

CVE ID

CVE-2023-24948

CVSS Score

7.6 AV:A/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected Vendors

Microsoft

Affected Products

Windows

Vulnerability Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must connect a malicious Bluetooth device.

The specific flaw exists within the processing of AVDTP packets. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the kernel.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-24948

Disclosure Timeline

  • 2023-03-10 - Vulnerability reported to vendor
  • 2024-05-09 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated

Credit

Anonymous

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