CVE-2023-4280 Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region

Critical 9.3 Published Updated

Attackers can access trusted memory regions from untrusted areas due to unvalidated input in the TrustZone implementation.

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-2023-4280?

CVE-2023-4280 is a critical memory corruption vulnerability in silabs.com GSDK, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An unvalidated input in Silicon Labs TrustZone implementation in v4.3.x and earlier of the Gecko SDK allows an attacker to access the trusted region of memory from the untrusted region.

Weakness: CWE-787, CWE-125

Which versions are affected by CVE-2023-4280?

It affects 1 product.

Products include Silabs Gecko Software Development Kit.

How do I fix CVE-2023-4280?

No fix has been published for CVE-2023-4280 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-2023-4280 being exploited?

There is no known exploitation of CVE-2023-4280 in the wild and no public exploit code.

Sources

Also known as GHSA-3rwq-pxmh-pw55.

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