# CVE-2004-0154: Denial of service in n/a

> Attackers can crash the NFS mount daemon by exploiting a mismatch between forward and reverse DNS lookups during a mount request.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 May 2004
- **Updated:** 8 Aug 2024
- **Also known as:** DEBIAN-CVE-2004-0154, GHSA-94fh-jw32-7fj9, RHSA-2004:072

## What is CVE-2004-0154?

CVE-2004-0154 is a medium-severity denial of service vulnerability in n/a, published on 12 May 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

rpc.mountd in nfs-utils after 1.0.3 and before 1.0.6 allows attackers to cause a denial of service (crash) via an NFS mount of a directory from a client whose reverse DNS lookup name is different from the forward lookup name.

## Which versions are affected by CVE-2004-0154?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `nfs-utils` | Red Hat:enterprise_linux:3::as | All versions | 0:1.0.6-7.EL |
| `nfs-utils` | Red Hat:enterprise_linux:3::desktop | All versions | 0:1.0.6-7.EL |
| `nfs-utils` | Red Hat:enterprise_linux:3::es | All versions | 0:1.0.6-7.EL |
| `nfs-utils` | Red Hat:enterprise_linux:3::ws | All versions | 0:1.0.6-7.EL |

Products: Nfs Nfs-Utils.

## How do I fix CVE-2004-0154?

Upgrade to a fixed version.

## Is CVE-2004-0154 being exploited?

There is no known exploitation of CVE-2004-0154 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2004-0946](https://insights.sbomify.com/CVE-2004-0946/): Memory corruption in n/a (critical 10.0)
- [CVE-2009-0180](https://insights.sbomify.com/CVE-2009-0180/): Security feature bypass in n/a (high 7.5)
- [CVE-2008-4552](https://insights.sbomify.com/CVE-2008-4552/): Auth bypass in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-0154 and fix it if it is affected.

What it is: CVE-2004-0154 is a medium-severity denial of service vulnerability in n/a, published on 12 May 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2004-0154 in the wild and no public exploit code.

Affected product: n/a. 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-2004-0154/ (Markdown: https://insights.sbomify.com/CVE-2004-0154/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-0154
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-0154
- OSV: https://osv.dev/vulnerability/CVE-2004-0154

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-0154/
Summaries are generated and may contain mistakes; the official description above is the record.