STM32 USB Host Library Buffer Overflow
CVE-2021-42553

9.8CRITICAL

Key Information:

Vendor

Stmicroelectronics Stm32cube

Status
Stm32 Usb Host Library
Vendor
CVE Published:
21 October 2022

What is CVE-2021-42553?

A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.

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Deploy the Patch

Affected Version(s)

STM32 USB Host Library all < 3.5.1

References

https://github.com/STMicroelectronics/stm32_mw_usb_host/p...
https://github.com/STMicroelectronics/stm32_mw_usb_host

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

Credit

github.com/Defonceuse
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