# CVE-2001-1501: Denial of service in n/a

> Remote attackers can cause denial of service in ProFTPD by sending commands with excessive wildcard characters, consuming CPU and memory resources.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Jun 2005
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-8826-pg9p-3pqq

## What is CVE-2001-1501?

CVE-2001-1501 is a medium-severity denial of service vulnerability in n/a, published on 21 Jun 2005. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The glob functionality in ProFTPD 1.2.1, and possibly other versions allows remote attackers to cause a denial of service (CPU and memory consumption) via commands with large numbers of wildcard and other special characters, as demonstrated using an ls command with multiple (1) "*/..", (2) "*/.*", or (3) ".*./*?/" sequences in the argument.

## Which versions are affected by CVE-2001-1501?

It affects 1 product.


Products: Proftpd Project Proftpd.

## How do I fix CVE-2001-1501?

No fix has been published for CVE-2001-1501 yet. Limit exposure of the affected software until one is available.

## Is CVE-2001-1501 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-1501 exists.

Public exploit code:

- WU-FTPD 2.4/2.5/2.6 / Trolltech ftpd 1.2 / ProFTPd 1.2 / BeroFTPD 1.3.4 FTP - glob Expansion (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2006-5815](https://insights.sbomify.com/CVE-2006-5815/): Memory corruption in n/a (critical 10.0)
- [CVE-2003-0500](https://insights.sbomify.com/CVE-2003-0500/): SQL injection in n/a (critical 10.0)
- [CVE-1999-0911](https://insights.sbomify.com/CVE-1999-0911/): Memory corruption in n/a (critical 10.0)
- [CVE-2003-0831](https://insights.sbomify.com/CVE-2003-0831/): Memory corruption in n/a (critical 9.0)
- [CVE-2009-0542](https://insights.sbomify.com/CVE-2009-0542/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2001-1501 and fix it if it is affected.

What it is: CVE-2001-1501 is a medium-severity denial of service vulnerability in n/a, published on 21 Jun 2005. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-1501 exists.

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-2001-1501/ (Markdown: https://insights.sbomify.com/CVE-2001-1501/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2001-1501
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2001-1501
- OSV: https://osv.dev/vulnerability/CVE-2001-1501

---
From sbomify Insights: https://insights.sbomify.com/CVE-2001-1501/
Summaries are generated and may contain mistakes; the official description above is the record.