CVE-2021-3974 Use After Free in vim/vim
High 7.3
Published
Updated
Check this codebase for CVE-2021-3974 and fix it if it is affected.
What it is: CVE-2021-3974 is a high-severity vulnerability in Debian Debian Linux, published on 19 Nov 2021.
Exploitation: There is no known exploitation of CVE-2021-3974 in the wild and no public exploit code.
Affected product: Debian Debian Linux. 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-2021-3974/ (Markdown: https://insights.sbomify.com/CVE-2021-3974/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2021-3974?
CVE-2021-3974 is a high-severity vulnerability in Debian Debian Linux, published on 19 Nov 2021.
Official description
vim is vulnerable to Use After Free
Weakness: CWE-416
Which versions are affected by CVE-2021-3974?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Vim Vim.
How do I fix CVE-2021-3974?
Upgrade to a fixed version.
Is CVE-2021-3974 being exploited?
There is no known exploitation of CVE-2021-3974 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2021-3974, AZL-6947, DEBIAN-CVE-2021-3974, GHSA-v748-hjwp-h5jj, UBUNTU-CVE-2021-3974.