Vulnerability CVE-2019-14238
Published: 2019-09-24

Description:
On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
ST -> Stm32f4 firmware 
ST -> Stm32f7 firmware 
ST -> Stm32h7 firmware 
ST -> Stm32l0 firmware 
ST -> Stm32l1 firmware 
ST -> Stm32l4 firmware 

 References:
https://www.usenix.org/conference/woot19/presentation/schink
https://www.usenix.org/system/files/woot19-paper_schink.pdf
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