CVE-2023-31723 Null dereference in n/a

Medium 5.5 Published 17 May 2023 Updated 22 Jan 2025

A segmentation violation in the Yasm assembler allows attackers to cause a 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-2023-31723?

CVE-2023-31723 is a medium-severity vulnerability in n/a, published on 17 May 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 1.3.0.55.g101bc was discovered to contain a segmentation violation via the function expand_mmac_params at /nasm/nasm-pp.c.

Which versions are affected by CVE-2023-31723?

It affects 1 product.

Products include Yasm Project Yasm.

How do I fix CVE-2023-31723?

No fix has been published for CVE-2023-31723 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-31723 being exploited?

There is no known exploitation of CVE-2023-31723 in the wild and no public exploit code.

Sources

Also known as AZL-26739, AZL-35390, DEBIAN-CVE-2023-31723, GHSA-5pcc-9vqw-qq2v, UBUNTU-CVE-2023-31723.