ZDI-24-848: (Pwn2Own) Alpine Halo9 DecodeUTF7 Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine Halo9 devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the DecodeUTF7 function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine Halo9 devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2024-23935.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-24-848?
The severity of ZDI-24-848 is critical due to the potential for arbitrary code execution.
How do I fix ZDI-24-848?
To fix ZDI-24-848, update the Alpine Halo9 device to the latest security patch provided by the vendor.
Who is affected by ZDI-24-848?
ZDI-24-848 affects installations of the Alpine Halo9 devices that can be paired with malicious Bluetooth devices.
What can an attacker do with ZDI-24-848?
An attacker exploiting ZDI-24-848 can execute arbitrary code on the affected Alpine Halo9 devices.
Is user interaction required to exploit ZDI-24-848?
Yes, user interaction is required as the attacker must obtain pairing access with the Bluetooth device.