# CVE-2007-2028: Denial of service in n/a

> Remote attackers can cause denial of service in freeRADIUS by exhausting memory through malformed EAP-TTLS Diameter attributes.

- **Severity:** Medium 5.0 (`AV:N/AC:L/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:** 13 Apr 2007
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2007-2028, GHSA-pmm2-rpqr-7h29, RHSA-2007:0338

## What is CVE-2007-2028?

CVE-2007-2028 is a medium-severity denial of service vulnerability in n/a, published on 13 Apr 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Memory leak in freeRADIUS 1.1.5 and earlier allows remote attackers to cause a denial of service (memory consumption) via a large number of EAP-TTLS tunnel connections using malformed Diameter format attributes, which causes the authentication request to be rejected but does not reclaim VALUE_PAIR data structures.

## Which versions are affected by CVE-2007-2028?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `freeradius` | Red Hat:enterprise_linux:3::as | All versions | 0:1.0.1-2.RHEL3.4 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:3::as | All versions | 0:1.0.1-2.RHEL3.4 |
| `freeradius` | Red Hat:enterprise_linux:3::es | All versions | 0:1.0.1-2.RHEL3.4 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:3::es | All versions | 0:1.0.1-2.RHEL3.4 |
| `freeradius` | Red Hat:enterprise_linux:4::as | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:4::as | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-mysql` | Red Hat:enterprise_linux:4::as | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-postgresql` | Red Hat:enterprise_linux:4::as | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-unixODBC` | Red Hat:enterprise_linux:4::as | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius` | Red Hat:enterprise_linux:4::es | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:4::es | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-mysql` | Red Hat:enterprise_linux:4::es | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-postgresql` | Red Hat:enterprise_linux:4::es | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius-unixODBC` | Red Hat:enterprise_linux:4::es | All versions | 0:1.0.1-3.RHEL4.5 |
| `freeradius` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-mysql` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-postgresql` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-unixODBC` | Red Hat:enterprise_linux:5::client_workstation | All versions | 0:1.1.3-1.2.el5 |
| `freeradius` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-debuginfo` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-mysql` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-postgresql` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.3-1.2.el5 |
| `freeradius-unixODBC` | Red Hat:enterprise_linux:5::server | All versions | 0:1.1.3-1.2.el5 |

Products: Freeradius Freeradius.

## How do I fix CVE-2007-2028?

Upgrade to a fixed version.

## Is CVE-2007-2028 being exploited?

There is no known exploitation of CVE-2007-2028 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-2007-2028 and fix it if it is affected.

What it is: CVE-2007-2028 is a medium-severity denial of service vulnerability in n/a, published on 13 Apr 2007. 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-2007-2028 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-2007-2028/ (Markdown: https://insights.sbomify.com/CVE-2007-2028/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-2028
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-2028
- OSV: https://osv.dev/vulnerability/CVE-2007-2028

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-2028/
Summaries are generated and may contain mistakes; the official description above is the record.