CVE-2021-42553 (GCVE-0-2021-42553)

Vulnerability from cvelistv5 – Published: 2022-10-21 00:00 – Updated: 2025-05-07 20:10
VLAI?
Summary
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.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • buffer overflow
Assigner
References
Impacted products
Vendor Product Version
STMicroelectronics STM32Cube STM32 USB Host Library Affected: all , < 3.5.1 (custom)
Create a notification for this product.
Credits
github.com/Defonceuse
Show details on NVD website
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.