# CVE-2018-14446: Memory corruption in n/a

> A heap-based buffer overflow in the MP4v2 library allows remote attackers to cause a denial of service or potentially execute arbitrary code via a crafted MP4 file.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 20 Jul 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-7j3g-6xj8-mqj5, UBUNTU-CVE-2018-14446

## What is CVE-2018-14446?

CVE-2018-14446 is a high-severity memory corruption vulnerability in n/a, published on 20 Jul 2018. 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

MP4Integer32Property::Read in atom_avcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted MP4 file.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2018-14446?

It affects 1 product.


Products: Techsmith Mp4v2.

## How do I fix CVE-2018-14446?

Upgrade to a fixed version.

## Is CVE-2018-14446 being exploited?

There is no known exploitation of CVE-2018-14446 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2018-14403](https://insights.sbomify.com/CVE-2018-14403/): Memory corruption in n/a (critical 9.8)
- [CVE-2018-14054](https://insights.sbomify.com/CVE-2018-14054/): Use after free in n/a (critical 9.8)
- [CVE-2018-14379](https://insights.sbomify.com/CVE-2018-14379/): Memory corruption in n/a (high 8.8)
- [CVE-2018-14325](https://insights.sbomify.com/CVE-2018-14325/): Integer overflow in n/a (high 8.8)
- [CVE-2018-14326](https://insights.sbomify.com/CVE-2018-14326/): Integer overflow in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-14446 and fix it if it is affected.

What it is: CVE-2018-14446 is a high-severity memory corruption vulnerability in n/a, published on 20 Jul 2018. 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-2018-14446 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-2018-14446/ (Markdown: https://insights.sbomify.com/CVE-2018-14446/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14446
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14446
- OSV: https://osv.dev/vulnerability/CVE-2018-14446

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-14446/
Summaries are generated and may contain mistakes; the official description above is the record.