CVE-2019-10013 Memory corruption in n/a

High 7.5 Published 3 Dec 2019 Updated 4 Aug 2024

Remote attackers can cause denial of service via crafted TLS certificates due to a buffer overflow in the axTLS library.

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-2019-10013?

CVE-2019-10013 is a high-severity memory corruption vulnerability in n/a, published on 3 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The asn1_signature function in asn1.c in Cameron Hamilton-Rich axTLS through 2.1.5 has a Buffer Overflow that allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted certificate in the TLS certificate handshake message, because the result of get_asn1_length() is not checked for a minimum or maximum size.

Weakness: CWE-120

Which versions are affected by CVE-2019-10013?

It affects 1 product.

Products include Axtls Project Axtls.

How do I fix CVE-2019-10013?

No fix has been published for CVE-2019-10013 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-2019-10013 being exploited?

There is no known exploitation of CVE-2019-10013 in the wild and no public exploit code.

Sources

Also known as GHSA-872v-39hw-4fr3, UBUNTU-CVE-2019-10013.