CVE-2021-33464 Memory corruption in n/a
A heap-buffer-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
- Available
What is CVE-2021-33464?
CVE-2021-33464 is a medium-severity memory corruption 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 heap-buffer-overflow in inc_fopen() in modules/preprocs/nasm/nasm-pp.c.
Weakness: CWE-787
Which versions are affected by CVE-2021-33464?
It affects 1 product.
Products include Tortall Yasm.
How do I fix CVE-2021-33464?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-33464 being exploited?
There is no known exploitation of CVE-2021-33464 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-10334, AZL-35374, DEBIAN-CVE-2021-33464, GHSA-j4jc-fh4v-27gw, JLSEC-2026-594, UBUNTU-CVE-2021-33464.