CVE-2023-51258 Denial of service in n/a

Medium 5.5 Published 18 Jan 2024 Updated 2 Aug 2024

A local attacker can cause a denial of service in the YASM assembler via a memory leak in the new_Token function.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2023-51258?

CVE-2023-51258 is a medium-severity denial of service vulnerability in n/a, published on 18 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A memory leak issue discovered in YASM v.1.3.0 allows a local attacker to cause a denial of service via the new_Token function in the modules/preprocs/nasm/nasm-pp:1512.

Weakness: CWE-401

Which versions are affected by CVE-2023-51258?

It affects 1 product.

Products include Tortall Yasm.

How do I fix CVE-2023-51258?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-51258 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-51258 exists.

Sources

Also known as AZL-33896, AZL-35384, DEBIAN-CVE-2023-51258, GHSA-8wwj-vq54-xqww, JLSEC-2026-599, UBUNTU-CVE-2023-51258.