# CVE-2011-4031: Integer overflow in n/a

> Remote attackers can execute arbitrary code via crafted ASF packets due to an integer underflow in FFmpeg's RTP decoder.

- **Severity:** Medium 6.8 (`AV:N/AC:M/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 May 2012
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-4cpw-52r2-x798

## What is CVE-2011-4031?

CVE-2011-4031 is a medium-severity vulnerability in Ffmpeg Ffmpeg, published on 9 May 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Integer underflow in the asfrtp_parse_packet function in libavformat/rtpdec_asf.c in FFmpeg before 0.8.3 allows remote attackers to execute arbitrary code via a crafted ASF packet.

Weakness: CWE-191 (Integer Underflow (Wrap or Wraparound))

## Which versions are affected by CVE-2011-4031?

It affects 1 product.


Products: Ffmpeg Ffmpeg.

## How do I fix CVE-2011-4031?

No fix has been published for CVE-2011-4031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4031 being exploited?

There is no known exploitation of CVE-2011-4031 in the wild and no public exploit code.

## Other vulnerabilities in Ffmpeg Ffmpeg

- [CVE-2013-0864](https://insights.sbomify.com/CVE-2013-0864/): Memory corruption in n/a (critical 10.0)
- [CVE-2013-0872](https://insights.sbomify.com/CVE-2013-0872/): Memory corruption in n/a (critical 10.0)
- [CVE-2013-0873](https://insights.sbomify.com/CVE-2013-0873/): Memory corruption in n/a (critical 10.0)
- [CVE-2013-4265](https://insights.sbomify.com/CVE-2013-4265/): Null dereference in n/a (critical 10.0)
- [CVE-2011-3937](https://insights.sbomify.com/CVE-2011-3937/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4031 and fix it if it is affected.

What it is: CVE-2011-4031 is a medium-severity vulnerability in Ffmpeg Ffmpeg, published on 9 May 2012. 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-2011-4031 in the wild and no public exploit code.

Affected product: Ffmpeg Ffmpeg. 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-2011-4031/ (Markdown: https://insights.sbomify.com/CVE-2011-4031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4031
- OSV: https://osv.dev/vulnerability/CVE-2011-4031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4031/
Summaries are generated and may contain mistakes; the official description above is the record.