# CVE-2014-9420: Denial of service in n/a

> A local attacker can cause a system crash or hang by mounting a crafted ISO9660 image with excessive Rock Ridge continuation entries.

- **Severity:** Medium 4.9 (`AV:L/AC:L/Au:N/C:N/I:N/A:C`)
- **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:** Yes
- **Published:** 26 Dec 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-9420, GHSA-g96g-p7vc-32vc, UBUNTU-CVE-2014-9420

## What is CVE-2014-9420?

CVE-2014-9420 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Dec 2014. 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

The rock_continue function in fs/isofs/rock.c in the Linux kernel through 3.18.1 does not restrict the number of Rock Ridge continuation entries, which allows local users to cause a denial of service (infinite loop, and system crash or hang) via a crafted iso9660 image.

Weakness: CWE-399

## Which versions are affected by CVE-2014-9420?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2014-9420?

Apply the vendor's patch.

## Is CVE-2014-9420 being exploited?

There is no known exploitation of CVE-2014-9420 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-2014-9420 and fix it if it is affected.

What it is: CVE-2014-9420 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Dec 2014. 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-2014-9420 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-2014-9420/ (Markdown: https://insights.sbomify.com/CVE-2014-9420/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-9420
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-9420
- OSV: https://osv.dev/vulnerability/CVE-2014-9420

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-9420/
Summaries are generated and may contain mistakes; the official description above is the record.