CVE-2020-24241 Use after free in n/a
A heap use-after-free in NASM allows attackers to execute arbitrary code or cause denial of service via crafted assembly files.
- 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-2020-24241?
CVE-2020-24241 is a medium-severity use after free vulnerability in Nasm Netwide Assembler, published on 25 Aug 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) 2.15rc10, there is heap use-after-free in saa_wbytes in nasmlib/saa.c.
Weakness: CWE-416
Which versions are affected by CVE-2020-24241?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2020-24241?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-24241 being exploited?
There is no known exploitation of CVE-2020-24241 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as DEBIAN-CVE-2020-24241, GHSA-x2g3-wj9f-6wcx, UBUNTU-CVE-2020-24241.