CVE-2019-14238 Security feature bypass in n/a

Medium 6.6 Published Updated

Attackers with physical access can bypass STM32F7 code read-out protection via the ITCM bus using a debug probe.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-14238?

CVE-2019-14238 is a medium-severity vulnerability in n/a, published on 24 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-287

Which versions are affected by CVE-2019-14238?

It affects 6 products.

Products include St Stm32f4 Firmware, St Stm32f7 Firmware, St Stm32h7 Firmware, St Stm32l0 Firmware, St Stm32l1 Firmware, St Stm32l4 Firmware.

How do I fix CVE-2019-14238?

No fix has been published for CVE-2019-14238 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-14238 being exploited?

There is no known exploitation of CVE-2019-14238 in the wild and no public exploit code.

Sources

Also known as GHSA-j5r4-8jvq-rp99.

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