# CVE-2010-3696: Denial of service in n/a

> Remote attackers can cause a denial of service in FreeRADIUS via a malformed DHCP packet in non-default builds.

- **Severity:** Medium 4.3 (`AV:N/AC:M/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:** Yes
- **Published:** 7 Oct 2010
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2010-3696, GHSA-63v7-hqpp-9687

## What is CVE-2010-3696?

CVE-2010-3696 is a medium-severity denial of service vulnerability in n/a, published on 7 Oct 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The fr_dhcp_decode function in lib/dhcp.c in FreeRADIUS 2.1.9, in certain non-default builds, does not properly handle the DHCP Relay Agent Information option, which allows remote attackers to cause a denial of service (infinite loop and daemon outage) via a packet that has more than one sub-option.  NOTE: some of these details are obtained from third party information.

Weakness: CWE-399

## Which versions are affected by CVE-2010-3696?

It affects 1 product.


Products: Freeradius Freeradius.

## How do I fix CVE-2010-3696?

Apply the vendor's patch.

## Is CVE-2010-3696 being exploited?

There is no known exploitation of CVE-2010-3696 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-10979](https://insights.sbomify.com/CVE-2017-10979/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-10984](https://insights.sbomify.com/CVE-2017-10984/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-9148](https://insights.sbomify.com/CVE-2017-9148/): Auth bypass in n/a (critical 9.8)
- [CVE-2015-8763](https://insights.sbomify.com/CVE-2015-8763/): Memory corruption in n/a (high 8.1)
- [CVE-2015-8764](https://insights.sbomify.com/CVE-2015-8764/): Memory corruption in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-3696 and fix it if it is affected.

What it is: CVE-2010-3696 is a medium-severity denial of service vulnerability in n/a, published on 7 Oct 2010. 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-2010-3696 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-2010-3696/ (Markdown: https://insights.sbomify.com/CVE-2010-3696/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-3696
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-3696
- OSV: https://osv.dev/vulnerability/CVE-2010-3696

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-3696/
Summaries are generated and may contain mistakes; the official description above is the record.