CVE-2020-24372 Memory corruption in n/a

High 7.5 Published 17 Aug 2020 Updated 3 Nov 2025

An out-of-bounds read in LuaJIT allows attackers to cause denial of service or disclose sensitive memory contents.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2020-24372?

CVE-2020-24372 is a high-severity memory corruption vulnerability in n/a, published on 17 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

LuaJIT through 2.1.0-beta3 has an out-of-bounds read in lj_err_run in lj_err.c.

Weakness: CWE-125

Which versions are affected by CVE-2020-24372?

It affects 1 product.

Products include Luajit Luajit.

How do I fix CVE-2020-24372?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-24372 being exploited?

There is no known exploitation of CVE-2020-24372 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2020-24372, ECHO-aed0-0ed6-0e6d, GHSA-cf74-x979-rggp, OESA-2021-1057, UBUNTU-CVE-2020-24372.