# CVE-2001-0061: Privilege escalation in n/a

> Local attackers can gain root privileges by exploiting improper access restrictions on procfs mem and ctl files in FreeBSD.

- **Severity:** High 7.2 (`AV:L/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 May 2001
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-xv29-cvx6-qc29

## What is CVE-2001-0061?

CVE-2001-0061 is a high-severity vulnerability in Freebsd Freebsd, published on 7 May 2001. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

procfs in FreeBSD and possibly other operating systems does not properly restrict access to per-process mem and ctl files, which allows local users to gain root privileges by forking a child process and executing a privileged process from the child, while the parent retains access to the child's address space.

## Which versions are affected by CVE-2001-0061?

It affects 1 product.


Products: Freebsd Freebsd.

## How do I fix CVE-2001-0061?

No fix has been published for CVE-2001-0061 yet. Limit exposure of the affected software until one is available.

## Is CVE-2001-0061 being exploited?

There is no known exploitation of CVE-2001-0061 in the wild and no public exploit code.

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2001-0061 and fix it if it is affected.

What it is: CVE-2001-0061 is a high-severity vulnerability in Freebsd Freebsd, published on 7 May 2001. 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-2001-0061 in the wild and no public exploit code.

Affected product: Freebsd Freebsd. 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-2001-0061/ (Markdown: https://insights.sbomify.com/CVE-2001-0061/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2001-0061
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2001-0061
- OSV: https://osv.dev/vulnerability/CVE-2001-0061

---
From sbomify Insights: https://insights.sbomify.com/CVE-2001-0061/
Summaries are generated and may contain mistakes; the official description above is the record.