CVE-2022-4842 Null dereference in Kernel
Medium 5.5
Published
Updated
Check this codebase for CVE-2022-4842 and fix it if it is affected.
What it is: CVE-2022-4842 is a medium-severity vulnerability in Linux kernel, published on 12 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-4842 in the wild and no public exploit code.
Affected product: Linux kernel. 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-2022-4842/ (Markdown: https://insights.sbomify.com/CVE-2022-4842/index.md)
A local user can crash the system via a null pointer dereference in the Linux kernel NTFS3 driver.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-4842?
CVE-2022-4842 is a medium-severity vulnerability in Linux kernel, published on 12 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw NULL Pointer Dereference in the Linux kernel NTFS3 driver function attr_punch_hole() was found. A local user could use this flaw to crash the system.
Weakness: CWE-476
Which versions are affected by CVE-2022-4842?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-4842?
Apply the vendor's patch.
Is CVE-2022-4842 being exploited?
There is no known exploitation of CVE-2022-4842 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-4842, GHSA-85q4-chqw-w4gj, UBUNTU-CVE-2022-4842.