CVE-2021-42553CWE-120

CVE-2021-42553

Medium · published October 21, 2022

CVSS v3.1
6.8
EPSS
1%
Percentile
69.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01274 · 69.7th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2022-10-21T14:15Z
Affected products (1)
ProductVersionsFixed in
st/stm32_mw_usb_host< 3.5.13.5.1
References (4)
https://github.com/STMicroelectronics/stm32_mw_usb_host · [email protected]https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4 · [email protected]https://github.com/STMicroelectronics/stm32_mw_usb_host · af854a3a-2127-422b-91ae-364da2661108https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 21 OCT 00:00Z
    STM32 USB Host Library Buffer Overflow
    cvelistv5