CVE-2022-43764 Buffer overflow when changing configuration on Tbase Server

Critical 9.8 Published Updated

A buffer overflow in B&R APROL Tbase Server allows attackers to execute arbitrary code or cause denial of service via malicious configuration inputs.

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-2022-43764?

CVE-2022-43764 is a critical memory corruption vulnerability in B&R APROL, published on 8 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Insufficient validation of input parameters when changing configuration on Tbase server in B&R APROL versions < R 4.2-07 could result in buffer overflow. This may lead to Denial-of-Service conditions or execution of arbitrary code.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2022-43764?

It affects 1 product.

Products include Br-Automation Industrial Automation Aprol.

How do I fix CVE-2022-43764?

No fix has been published for CVE-2022-43764 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-2022-43764 being exploited?

There is no known exploitation of CVE-2022-43764 in the wild and no public exploit code.

Sources

Also known as GHSA-pmw8-p4g8-wr53.

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