CVE-2021-34259 Memory corruption in n/a

Medium 6.8 Published 22 Jul 2021 Updated 4 Aug 2024

A buffer overflow in STM32Cube Middleware allows attackers to execute arbitrary code via crafted USB configuration descriptors.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-34259?

CVE-2021-34259 is a medium-severity memory corruption vulnerability in n/a, published on 22 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow vulnerability in the USBH_ParseCfgDesc() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below allows attackers to execute arbitrary code.

Weakness: CWE-120

Which versions are affected by CVE-2021-34259?

It affects 1 product.

Products include St Stm32cube Middleware.

How do I fix CVE-2021-34259?

No fix has been published for CVE-2021-34259 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-34259 being exploited?

There is no known exploitation of CVE-2021-34259 in the wild and no public exploit code.

Sources

Also known as GHSA-7g6w-vchp-xwf7.