CVE-2019-16747 Memory corruption in n/a

High 7.5 Published 30 Dec 2020 Updated 5 Aug 2024

A crafted network message can cause an invalid pointer free in the MatrixSSL DTLS server, leading to memory corruption and a daemon crash.

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-2019-16747?

CVE-2019-16747 is a high-severity memory corruption vulnerability in n/a, published on 30 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In MatrixSSL before 4.2.2 Open, the DTLS server can encounter an invalid pointer free (leading to memory corruption and a daemon crash) via a crafted incoming network message, a different vulnerability than CVE-2019-14431.

Weakness: CWE-787

Which versions are affected by CVE-2019-16747?

It affects 1 product.

Products include Matrixssl Matrixssl.

How do I fix CVE-2019-16747?

No fix has been published for CVE-2019-16747 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-2019-16747 being exploited?

There is no known exploitation of CVE-2019-16747 in the wild and no public exploit code.

Sources

Also known as GHSA-g7fc-v5jh-qw54.