CVE-2021-34268 — MEDIUM (4.6)

Q: What is CVE-2021-34268?

CVE-2021-34268 is a vulnerability with a CVSS score of 4.6 (MEDIUM). An issue in the USBH_ParseDevDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) via a malformed USB device packet.

Q: How severe is CVE-2021-34268?

CVE-2021-34268 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-34268?

Check the references section above for vendor advisories and patch information. Affected products include: St Stm32Cube Middleware, St Stm32H7B3.

Vulnerability Description

An issue in the USBH_ParseDevDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) via a malformed USB device packet.

CVSS Score

4.6

MEDIUM

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
St	Stm32Cube Middleware	<= 1.8.0
St	Stm32H7B3	-

References

https://github.com/STMicroelectronics/STM32CubeH7/issues/75ExploitThird Party Advisory
https://github.com/STMicroelectronics/STM32CubeH7/issues/75ExploitThird Party Advisory

FAQ

What is CVE-2021-34268?

CVE-2021-34268 is a vulnerability with a CVSS score of 4.6 (MEDIUM). An issue in the USBH_ParseDevDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) via a malformed USB device packet.

How severe is CVE-2021-34268?

CVE-2021-34268 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34268?

Check the references section above for vendor advisories and patch information. Affected products include: St Stm32Cube Middleware, St Stm32H7B3.