CVE-2020-18974 Memory corruption in n/a
Attackers can cause a denial of service in Netwide Assembler via a buffer overflow in the crc64 component.
- 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-2020-18974?
CVE-2020-18974 is a low-severity memory corruption vulnerability in Nasm Netwide Assembler, published on 25 Aug 2021. 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
Buffer Overflow in Netwide Assembler (NASM) v2.15.xx allows attackers to cause a denial of service via 'crc64i' in the component 'nasmlib/crc64'. This issue is different than CVE-2019-7147.
Weakness: CWE-120
Which versions are affected by CVE-2020-18974?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2020-18974?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-18974 being exploited?
There is no known exploitation of CVE-2020-18974 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as DEBIAN-CVE-2020-18974, GHSA-4wgw-2p35-h26h, JLSEC-2026-199, UBUNTU-CVE-2020-18974.