# CVE-2011-0723: Memory corruption in n/a

> Remote attackers can cause application crashes or execute arbitrary code by tricking users into opening a malformed VC-1 file in FFmpeg.

- **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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 May 2011
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-0723, GHSA-rp5c-q9p5-vm9v

## What is CVE-2011-0723?

CVE-2011-0723 is a medium-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 20 May 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

FFmpeg 0.5.x, as used in MPlayer and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed VC-1 file.

Weakness: CWE-399

## Which versions are affected by CVE-2011-0723?

It affects 2 products.


Products: Ffmpeg Ffmpeg, Mplayer Mplayer.

## How do I fix CVE-2011-0723?

Upgrade to a fixed version.

## Is CVE-2011-0723 being exploited?

There is no known exploitation of CVE-2011-0723 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-2011-0723 and fix it if it is affected.

What it is: CVE-2011-0723 is a medium-severity memory corruption vulnerability in Ffmpeg Ffmpeg, published on 20 May 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2011-0723 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-2011-0723/ (Markdown: https://insights.sbomify.com/CVE-2011-0723/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-0723
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-0723
- OSV: https://osv.dev/vulnerability/CVE-2011-0723

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-0723/
Summaries are generated and may contain mistakes; the official description above is the record.