Azure RTOS USBX vulnerable to buffer overflow
CVE-2022-39344

9.8CRITICAL

Key Information:

Vendor

Azure-rtos

Status
Usbx
Vendor
CVE Published:
4 November 2022

What is CVE-2022-39344?

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.

Affected Version(s)

usbx < 6.1.12

References

https://github.com/azure-rtos/usbx/security/advisories/GH...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.