# CVE-2017-11126: Denial of service in n/a

> Remote attackers can cause a denial of service via a crafted audio file triggering a buffer over-read in the mpg123 library.

- **Severity:** Medium 5.5 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 10 Jul 2017
- **Updated:** 5 Aug 2024
- **Also known as:** ALPINE-CVE-2017-11126, DEBIAN-CVE-2017-11126, GHSA-mfqq-9fqv-736q, UBUNTU-CVE-2017-11126

## What is CVE-2017-11126?

CVE-2017-11126 is a medium-severity denial of service vulnerability in n/a, published on 10 Jul 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official 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.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2017-11126?

It affects 1 product.


Products: Mpg123 Mpg123.

## How do I fix CVE-2017-11126?

Upgrade to a fixed version.

## Is CVE-2017-11126 being exploited?

There is no known exploitation of CVE-2017-11126 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2009-1301](https://insights.sbomify.com/CVE-2009-1301/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-1284](https://insights.sbomify.com/CVE-2004-1284/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0982](https://insights.sbomify.com/CVE-2004-0982/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-12839](https://insights.sbomify.com/CVE-2017-12839/): Memory corruption in n/a (high 8.3)
- [CVE-2014-9497](https://insights.sbomify.com/CVE-2014-9497/): Buffer overflow in mpg123 before 1.18.0. (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-11126 and fix it if it is affected.

What it is: CVE-2017-11126 is a medium-severity denial of service vulnerability in n/a, published on 10 Jul 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-11126 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2017-11126/ (Markdown: https://insights.sbomify.com/CVE-2017-11126/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-11126
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-11126
- OSV: https://osv.dev/vulnerability/CVE-2017-11126

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-11126/
Summaries are generated and may contain mistakes; the official description above is the record.