CVE-2019-20352 Memory corruption in n/a
A heap-based buffer over-read in NASM allows attackers to cause denial of service or potentially execute code via a crafted assembly file.
- 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-2019-20352?
CVE-2019-20352 is a high-severity memory corruption vulnerability in Nasm Netwide Assembler, published on 6 Jan 2020. 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
In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in set_text_free when called from expand_one_smacro in asm/preproc.c.
Weakness: CWE-125
Which versions are affected by CVE-2019-20352?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2019-20352?
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-2019-20352 being exploited?
There is no known exploitation of CVE-2019-20352 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as DEBIAN-CVE-2019-20352, GHSA-m9qp-645h-mppv, UBUNTU-CVE-2019-20352.