# CVE-2016-7424: Null dereference in n/a

> Remote attackers can cause a denial of service via a crafted MP3 file due to a NULL pointer dereference in libav.

- **Severity:** Medium 5.5 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 7 Oct 2016
- **Updated:** 6 Aug 2024
- **Also known as:** DLA-780-1, DSA-3685-1, GHSA-67pf-v3gx-9jmp, UBUNTU-CVE-2016-7424

## What is CVE-2016-7424?

CVE-2016-7424 is a medium-severity vulnerability in Debian Debian Linux, published on 7 Oct 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The put_no_rnd_pixels8_xy2_mmx function in x86/rnd_template.c in libav 11.7 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted MP3 file.

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2016-7424?

It affects 2 products.


Products: Debian Debian Linux, Libav Libav.

## How do I fix CVE-2016-7424?

Apply the vendor's patch.

## Is CVE-2016-7424 being exploited?

There is no known exploitation of CVE-2016-7424 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7424 and fix it if it is affected.

What it is: CVE-2016-7424 is a medium-severity vulnerability in Debian Debian Linux, published on 7 Oct 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2016-7424 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2016-7424/ (Markdown: https://insights.sbomify.com/CVE-2016-7424/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7424
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7424
- OSV: https://osv.dev/vulnerability/CVE-2016-7424

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-7424/
Summaries are generated and may contain mistakes; the official description above is the record.