# CVE-2018-7339: Integer overflow in n/a

> Remote attackers can cause denial of service via crafted MP4 files due to improper validation in the MP4v2 library.

- **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:** No
- **Published:** 23 Feb 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-3qpp-cfg4-r2ww, UBUNTU-CVE-2018-7339

## What is CVE-2018-7339?

CVE-2018-7339 is a high-severity vulnerability in n/a, published on 23 Feb 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

The MP4Atom class in mp4atom.cpp in MP4v2 through 2.0.0 mishandles Entry Number validation for the MP4 Table Property, which allows remote attackers to cause a denial of service (overflow, insufficient memory allocation, and segmentation fault) or possibly have unspecified other impact via a crafted mp4 file.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2018-7339?

It affects 1 product.


Products: Mp4v2 Project Mp4v2.

## How do I fix CVE-2018-7339?

No fix has been published for CVE-2018-7339 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-7339 being exploited?

There is no known exploitation of CVE-2018-7339 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-33718](https://insights.sbomify.com/CVE-2023-33718/): Memory corruption in n/a (high 8.8)
- [CVE-2023-29578](https://insights.sbomify.com/CVE-2023-29578/): Memory corruption in n/a (high 8.8)
- [CVE-2023-29584](https://insights.sbomify.com/CVE-2023-29584/): Memory corruption in n/a (high 8.8)
- [CVE-2023-33720](https://insights.sbomify.com/CVE-2023-33720/): Denial of service in n/a (medium 6.5)
- [CVE-2018-17235](https://insights.sbomify.com/CVE-2018-17235/): Memory corruption in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-7339 and fix it if it is affected.

What it is: CVE-2018-7339 is a high-severity vulnerability in n/a, published on 23 Feb 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-2018-7339 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-2018-7339/ (Markdown: https://insights.sbomify.com/CVE-2018-7339/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-7339
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-7339
- OSV: https://osv.dev/vulnerability/CVE-2018-7339

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-7339/
Summaries are generated and may contain mistakes; the official description above is the record.