CVE-2020-19693 Memory corruption in n/a

Critical 9.8 Published Updated

An attacker can execute arbitrary code via a memory corruption vulnerability in the Espruino firmware's function replacement endpoint.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-19693?

CVE-2020-19693 is a critical memory corruption vulnerability in n/a, published on 4 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue found in Espruino Espruino 6ea4c0a allows an attacker to execute arbitrrary code via oldFunc parameter of the jswrap_object.c:jswrap_function_replacewith endpoint.

Weakness: CWE-787

Which versions are affected by CVE-2020-19693?

It affects 1 product.

Products include Espruino Espruino.

How do I fix CVE-2020-19693?

No fix has been published for CVE-2020-19693 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-2020-19693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-19693 exists.

Sources

Also known as GHSA-g6pr-f698-8rc4.

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