CVE-2020-27212 Security feature bypass in n/a
Attackers can bypass flash read-out protection on STM32L4 devices via fault injection during boot, enabling unauthorized debug access and data extraction.
- 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-2020-27212?
CVE-2020-27212 is a high-severity vulnerability in n/a, published on 21 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase.
Weakness: CWE-74
Which versions are affected by CVE-2020-27212?
It affects 1 product.
Products include St Stm32cubel4 Firmware.
How do I fix CVE-2020-27212?
No fix has been published for CVE-2020-27212 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27212 being exploited?
There is no known exploitation of CVE-2020-27212 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-whvf-9w6f-2rqw.