CVE-2022-35407 Memory corruption in n/a

High 7.8 Published Updated

A stack buffer overflow in the InsydeH2O SetupUtility driver allows attackers to execute arbitrary code and modify UEFI variables on Intel platforms.

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-2022-35407?

CVE-2022-35407 is a high-severity memory corruption vulnerability in n/a, published on 22 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. A stack buffer overflow leads to arbitrary code execution in the SetupUtility driver on Intel platforms. An attacker can change the values of certain UEFI variables. If the size of the second variable exceeds the size of the first, then the buffer will be overwritten. This issue affects the SetupUtility driver of InsydeH2O.

Weakness: CWE-787

Which versions are affected by CVE-2022-35407?

It affects 1 product.

Products include Insyde Kernel.

How do I fix CVE-2022-35407?

No fix has been published for CVE-2022-35407 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-2022-35407 being exploited?

There is no known exploitation of CVE-2022-35407 in the wild and no public exploit code.

Sources

Also known as GHSA-mm4m-cr9x-9m5h.

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