Vulnerability Details : CVE-2019-14238
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2019-14238
- cpe:2.3:o:st:stm32l0_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:st:stm32l1_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:st:stm32f4_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:st:stm32l4_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:st:stm32f7_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:st:stm32h7_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-14238
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-14238
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
6.6
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
0.7
|
5.9
|
NIST |
CWE ids for CVE-2019-14238
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-14238
-
https://www.usenix.org/system/files/woot19-paper_schink.pdf
Exploit;Mitigation;Third Party Advisory
-
https://www.usenix.org/conference/woot19/presentation/schink
Taking a Look into Execute-Only Memory | USENIXExploit;Third Party Advisory
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