# CVE-2003-0849: Memory corruption in n/a

> Remote attackers can execute arbitrary code on cfengine servers via a buffer overflow in network packet handling.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/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:** 9 Oct 2003
- **Updated:** 8 Aug 2024
- **Also known as:** GHSA-6q3f-pvg5-m3gm

## What is CVE-2003-0849?

CVE-2003-0849 is a high-severity memory corruption vulnerability in n/a, published on 9 Oct 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Buffer overflow in net.c for cfengine 2.x before 2.0.8 allows remote attackers to execute arbitrary code via certain packets with modified length values, which is trusted by the ReceiveTransaction function when using a buffer provided by the BusyWithConnection function.

## Which versions are affected by CVE-2003-0849?

It affects 1 product.


Products: Gnu Cfengine.

## How do I fix CVE-2003-0849?

No fix has been published for CVE-2003-0849 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0849 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0849 exists.

Public exploit code:

- GNU CFEngine 2.0.x - CFServD Transaction Packet Buffer Overrun (1) (exploitdb)
- GNU CFEngine 2.-2.0.3 - Remote Stack Overflow (exploitdb)
- GNU CFEngine 2.0.x - CFServD Transaction Packet Buffer Overrun (2) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2004-1701](https://insights.sbomify.com/CVE-2004-1701/): Memory corruption in n/a (critical 10.0)
- [CVE-2000-0947](https://insights.sbomify.com/CVE-2000-0947/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-1702](https://insights.sbomify.com/CVE-2004-1702/): Null dereference in n/a (medium 5.0)
- [CVE-2005-3137](https://insights.sbomify.com/CVE-2005-3137/): Path traversal in n/a (low 2.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0849 and fix it if it is affected.

What it is: CVE-2003-0849 is a high-severity memory corruption vulnerability in n/a, published on 9 Oct 2003. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2003-0849 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-2003-0849/ (Markdown: https://insights.sbomify.com/CVE-2003-0849/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0849
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0849
- OSV: https://osv.dev/vulnerability/CVE-2003-0849

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0849/
Summaries are generated and may contain mistakes; the official description above is the record.