# CVE-2010-2693: Privilege escalation in n/a

> Local attackers can exploit a sendfile system call flaw in FreeBSD to corrupt system files, causing denial of service and gaining elevated privileges.

- **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:** 13 Jul 2010
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3gm6-xhv6-72q8

## What is CVE-2010-2693?

CVE-2010-2693 is a high-severity vulnerability in Freebsd Freebsd, published on 13 Jul 2010. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

FreeBSD 7.1 through 8.1-PRERELEASE does not copy the read-only flag when creating a duplicate mbuf buffer reference, which allows local users to cause a denial of service (system file corruption) and gain privileges via the sendfile system call.

Weakness: CWE-264

## Which versions are affected by CVE-2010-2693?

It affects 1 product.


Products: Freebsd Freebsd.

## How do I fix CVE-2010-2693?

No fix has been published for CVE-2010-2693 yet. Limit exposure of the affected software until one is available.

## Is CVE-2010-2693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-2693 exists.

Public exploit code:

- FreeBSD - 'mbufs()' sendfile Cache Poisoning Privilege Escalation (exploitdb)

## 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-2010-2693 and fix it if it is affected.

What it is: CVE-2010-2693 is a high-severity vulnerability in Freebsd Freebsd, published on 13 Jul 2010. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-2693 exists.

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-2010-2693/ (Markdown: https://insights.sbomify.com/CVE-2010-2693/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-2693
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-2693
- OSV: https://osv.dev/vulnerability/CVE-2010-2693

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-2693/
Summaries are generated and may contain mistakes; the official description above is the record.