CVE-2021-45256 Null dereference in n/a
A null pointer dereference in the NASM 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
- None listed
What is CVE-2021-45256?
CVE-2021-45256 is a medium-severity vulnerability in Nasm Netwide Assembler, published on 22 Dec 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
A Null Pointer Dereference vulnerability existfs in nasm 2.16rc0 via asm/preproc.c.
Weakness: CWE-476
Which versions are affected by CVE-2021-45256?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2021-45256?
No fix has been published for CVE-2021-45256 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-45256 being exploited?
There is no known exploitation of CVE-2021-45256 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as DEBIAN-CVE-2021-45256, GHSA-vc9p-94q9-qg8c, UBUNTU-CVE-2021-45256.