CVE-2022-39344
- Reference to the description:
- Description:
- 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.
- Last updated date:
- 11/07/2022
- Type:
- exploit
- Confidence:
- HIGH
- Date of publishing:
- 11/07/2022
- Reference url to background
https://github.com/azure-rtos/usbx/security/advisories/GHSA-m9p8-xrp7-vvqp