# CVE-2019-14284: Denial of service in n/a

> A local unprivileged user can cause a denial of service via a division-by-zero error in the Linux kernel floppy driver.

- **Severity:** Medium 6.2 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Jul 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-14284, GHSA-99rj-63hw-gv5j, UBUNTU-CVE-2019-14284

## What is CVE-2019-14284?

CVE-2019-14284 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel before 5.2.3, drivers/block/floppy.c allows a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that make F_SECT_PER_TRACK be zero. Next, the floppy format operation should be called. It can be triggered by an unprivileged local user even when a floppy disk has not been inserted. NOTE: QEMU creates the floppy device by default.

Weakness: CWE-369 (Divide By Zero)

## Which versions are affected by CVE-2019-14284?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2019-14284?

Apply the vendor's patch.

## Is CVE-2019-14284 being exploited?

There is no known exploitation of CVE-2019-14284 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-14284 and fix it if it is affected.

What it is: CVE-2019-14284 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Jul 2019. 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-2019-14284 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-2019-14284/ (Markdown: https://insights.sbomify.com/CVE-2019-14284/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-14284
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-14284
- OSV: https://osv.dev/vulnerability/CVE-2019-14284

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-14284/
Summaries are generated and may contain mistakes; the official description above is the record.