CVE-2020-24242 Null dereference in n/a
Medium 5.5
Published
Updated
Check this codebase for CVE-2020-24242 and fix it if it is affected.
What it is: CVE-2020-24242 is a medium-severity 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.
Exploitation: There is no known exploitation of CVE-2020-24242 in the wild and no public exploit code.
Affected product: Nasm Netwide Assembler. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2020-24242/ (Markdown: https://insights.sbomify.com/CVE-2020-24242/index.md)
A null pointer dereference in NASM 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
- Available
What is CVE-2020-24242?
CVE-2020-24242 is a medium-severity 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, SEGV can be triggered in tok_text in asm/preproc.c by accessing READ memory.
Which versions are affected by CVE-2020-24242?
It affects 1 product.
Products include Nasm Netwide Assembler.
How do I fix CVE-2020-24242?
Upgrade to a fixed version.
Is CVE-2020-24242 being exploited?
There is no known exploitation of CVE-2020-24242 in the wild and no public exploit code.
Other vulnerabilities in Nasm Netwide Assembler
Sources
Also known as DEBIAN-CVE-2020-24242, GHSA-v9xp-6r7f-273p, UBUNTU-CVE-2020-24242.