# CVE-2019-12730: Other in n/a

> FFmpeg fails to check sscanf return values, leading to use of uninitialized variables which may cause crashes or undefined behavior.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 4 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** CLEANSTART-2024-XM83802, DEBIAN-CVE-2019-12730, DSA-4502-1, GHSA-qvcr-p33x-3v45, UBUNTU-CVE-2019-12730

## What is CVE-2019-12730?

CVE-2019-12730 is a critical vulnerability in Ffmpeg Ffmpeg, published on 4 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

aa_read_header in libavformat/aadec.c in FFmpeg before 3.2.14 and 4.x before 4.1.4 does not check for sscanf failure and consequently allows use of uninitialized variables.

Weakness: CWE-908 (Use of Uninitialized Resource)

## Which versions are affected by CVE-2019-12730?

It affects 1 product.


Products: Ffmpeg Ffmpeg.

## How do I fix CVE-2019-12730?

Upgrade to a fixed version.

## Is CVE-2019-12730 being exploited?

There is no known exploitation of CVE-2019-12730 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-2019-12730 and fix it if it is affected.

What it is: CVE-2019-12730 is a critical vulnerability in Ffmpeg Ffmpeg, published on 4 Jun 2019. 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-2019-12730 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-2019-12730/ (Markdown: https://insights.sbomify.com/CVE-2019-12730/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12730
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12730
- OSV: https://osv.dev/vulnerability/CVE-2019-12730

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12730/
Summaries are generated and may contain mistakes; the official description above is the record.