CVE-2021-33452 Denial of service in n/a
Memory leaks in the NASM assembler can lead to resource exhaustion and denial of service when processing malicious 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-2021-33452?
CVE-2021-33452 is a medium-severity denial of service vulnerability in Nasm Netwide Assembler, 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 NASM version 2.16rc0. There are memory leaks in nasm_malloc() in nasmlib/alloc.c.
Weakness: CWE-401
Which versions are affected by CVE-2021-33452?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2021-33452?
Upgrade to a fixed version.
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-2021-33452 being exploited?
There is no known exploitation of CVE-2021-33452 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as AZL-41956, DEBIAN-CVE-2021-33452, GHSA-fmxx-46x7-2phx, UBUNTU-CVE-2021-33452.