# CVE-2006-6409: Denial of service in n/a

> Remote attackers can cause denial of service and bypass virus detection by sending malformed base64 MIME content to F-Secure Anti-Virus for Linux Gateways.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Dec 2006
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-g2gr-xwg2-64rc

## What is CVE-2006-6409?

CVE-2006-6409 is a critical denial of service vulnerability in n/a, published on 10 Dec 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

F-Secure Anti-Virus for Linux Gateways 4.65 allows remote attackers to cause a denial of service (possibly fatal scan error), and possibly bypass virus detection, by inserting invalid characters into base64 encoded content in a multipart/mixed MIME file, as demonstrated with the EICAR test file.

## Which versions are affected by CVE-2006-6409?

It affects 1 product.


Products: F-Secure F-Secure Anti-Virus.

## How do I fix CVE-2006-6409?

No fix has been published for CVE-2006-6409 yet. Limit exposure of the affected software until one is available.

## Is CVE-2006-6409 being exploited?

There is no known exploitation of CVE-2006-6409 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2007-2967](https://insights.sbomify.com/CVE-2007-2967/): Denial of service in n/a (critical 10.0)
- [CVE-2007-3300](https://insights.sbomify.com/CVE-2007-3300/): Security feature bypass in n/a (critical 9.3)
- [CVE-2008-6085](https://insights.sbomify.com/CVE-2008-6085/): Integer overflow in n/a (high 7.6)
- [CVE-2006-2838](https://insights.sbomify.com/CVE-2006-2838/): Memory corruption in n/a (high 7.6)
- [CVE-2008-0910](https://insights.sbomify.com/CVE-2008-0910/): Security feature bypass in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2006-6409 and fix it if it is affected.

What it is: CVE-2006-6409 is a critical denial of service vulnerability in n/a, published on 10 Dec 2006. 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-2006-6409 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-2006-6409/ (Markdown: https://insights.sbomify.com/CVE-2006-6409/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2006-6409
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2006-6409
- OSV: https://osv.dev/vulnerability/CVE-2006-6409

---
From sbomify Insights: https://insights.sbomify.com/CVE-2006-6409/
Summaries are generated and may contain mistakes; the official description above is the record.