CVE-2021-33456 Null dereference in n/a
A NULL pointer dereference 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
- Available
What is CVE-2021-33456?
CVE-2021-33456 is a medium-severity vulnerability in n/a, published on 26 Jul 2022. 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
An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in hash() in modules/preprocs/nasm/nasm-pp.c.
Weakness: CWE-476
Which versions are affected by CVE-2021-33456?
It affects 1 product.
Products include Tortall Yasm.
How do I fix CVE-2021-33456?
Upgrade to a fixed version.
Is CVE-2021-33456 being exploited?
There is no known exploitation of CVE-2021-33456 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-10326, AZL-35366, DEBIAN-CVE-2021-33456, GHSA-jm6f-2xgv-f2ch, JLSEC-2026-586, UBUNTU-CVE-2021-33456.