CVE-2021-34267 Denial of service in n/a

Medium 4.6 Published Updated

A flaw in the USB mass storage interface initialization allows attackers to cause a denial of service via malicious endpoint communication.

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-2021-34267?

CVE-2021-34267 is a medium-severity denial of service 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

An in the USBH_MSC_InterfaceInit() function of STMicroelectronics STM32Cube Middleware v1.8.0 and below causes a denial of service (DOS) when the system tries to communicate with the connected endpoint.

Which versions are affected by CVE-2021-34267?

It affects 1 product.

Products include St Stm32cube Middleware.

How do I fix CVE-2021-34267?

No fix has been published for CVE-2021-34267 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-34267 being exploited?

There is no known exploitation of CVE-2021-34267 in the wild and no public exploit code.

Sources

Also known as GHSA-9pmv-cwwx-vvjr.

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