Azure RTOS USBX vulnerable to buffer overflow
Azure RTOS USBX is a USB host, device, and on-the-go (OTG) embedded stack, that is fully integrated with Azure RTOS ThreadX. Prior to version 6.1.12, the USB DFU UPLOAD functionality may be utilized to introduce a buffer overflow resulting in overwrite of memory contents. In particular cases this may allow an attacker to bypass security features or execute arbitrary code. The implementation of `ux_device_class_dfu_control_request` function prevents buffer overflow during handling of DFU UPLOAD command when current state is `UX_SYSTEM_DFU_STATE_DFU_IDLE`. This issue has been patched, please upgrade to version 6.1.12. As a workaround, add the `UPLOAD_LENGTH` check in all possible states.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-120 | CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') |
Type: CWE
Description: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 3.1 | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H