CVE-2023-50044 Memory corruption in n/a

Critical 9.8 Published 20 Dec 2023 Updated 2 Aug 2024

An out-of-bounds read in Cesanta MJS allows attackers to cause denial of service or disclose sensitive memory contents via crafted input.

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-2023-50044?

CVE-2023-50044 is a critical memory corruption vulnerability in Cesanta Mjs, published on 20 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.

Weakness: CWE-120

Which versions are affected by CVE-2023-50044?

It affects 1 product.

Products include Cesanta Mjs.

How do I fix CVE-2023-50044?

No fix has been published for CVE-2023-50044 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-2023-50044 being exploited?

There is no known exploitation of CVE-2023-50044 in the wild and no public exploit code.

All Cesanta Mjs vulnerabilities

Sources

Also known as GHSA-5x2j-8rm7-fm3j.