CVE-2023-30402 Memory corruption in n/a

Medium 5.5 Published 25 Apr 2023 Updated 2 Aug 2024

A heap overflow in YASM allows attackers to execute arbitrary code or cause denial of service via crafted input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-30402?

CVE-2023-30402 is a medium-severity memory corruption vulnerability in n/a, published on 25 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

YASM v1.3.0 was discovered to contain a heap overflow via the function handle_dot_label at /nasm/nasm-token.re. Note: This has been disputed by third parties who argue this is a bug and not a security issue because yasm is a standalone program not designed to run untrusted code.

Weakness: CWE-787

Which versions are affected by CVE-2023-30402?

It affects 1 product.

Products include Yasm Project Yasm.

How do I fix CVE-2023-30402?

No fix has been published for CVE-2023-30402 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-2023-30402 being exploited?

There is no known exploitation of CVE-2023-30402 in the wild and no public exploit code.

Sources

Also known as AZL-26359, AZL-35379, DEBIAN-CVE-2023-30402, GHSA-vfgv-q9rw-8wc7.