# CVE-2007-0428: Null dereference in n/a

> Remote attackers can cause a denial of service in WzdFTPD via a crafted FTP command due to a NULL pointer dereference.

- **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:** No
- **Published:** 23 Jan 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-8p2j-xx66-4mw8

## What is CVE-2007-0428?

CVE-2007-0428 is a medium-severity vulnerability in n/a, published on 23 Jan 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Unspecified vulnerability in the chtbl_lookup function in hash.c for WzdFTPD 8.0 and earlier allows remote attackers to cause a denial of service via a crafted FTP command, probably due to a NULL pointer dereference.

## Which versions are affected by CVE-2007-0428?

It affects 1 product.


Products: Wzdftpd Wzdftpd.

## How do I fix CVE-2007-0428?

No fix has been published for CVE-2007-0428 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-0428 being exploited?

There is no known exploitation of CVE-2007-0428 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2007-5300](https://insights.sbomify.com/CVE-2007-5300/): Memory corruption in n/a (medium 5.0)
- [CVE-2003-0477](https://insights.sbomify.com/CVE-2003-0477/): Denial of service in n/a (medium 5.0)
- [CVE-2005-3081](https://insights.sbomify.com/CVE-2005-3081/): Command injection in n/a (medium 4.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-0428 and fix it if it is affected.

What it is: CVE-2007-0428 is a medium-severity vulnerability in n/a, published on 23 Jan 2007. 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-2007-0428 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-2007-0428/ (Markdown: https://insights.sbomify.com/CVE-2007-0428/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-0428
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-0428
- OSV: https://osv.dev/vulnerability/CVE-2007-0428

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-0428/
Summaries are generated and may contain mistakes; the official description above is the record.