# CVE-2014-9756: Denial of service in n/a

> Attackers can cause a denial of service via divide-by-zero in libsndfile, affecting applications processing audio files.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Not stated
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 Nov 2015
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2014-9756, GHSA-vc8h-g97p-fh5j, UBUNTU-CVE-2014-9756

## What is CVE-2014-9756?

CVE-2014-9756 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Nov 2015. 

### Official description

The psf_fwrite function in file_io.c in libsndfile allows attackers to cause a denial of service (divide-by-zero error and application crash) via unspecified vectors related to the headindex variable.

Weakness: CWE-369 (Divide By Zero)

## Which versions are affected by CVE-2014-9756?

It affects 4 products.


Products: Canonical Ubuntu Linux, Libsndfile Project Libsndfile, Opensuse Leap, Opensuse Opensuse.

## How do I fix CVE-2014-9756?

Upgrade to a fixed version.

## Is CVE-2014-9756 being exploited?

There is no known exploitation of CVE-2014-9756 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-9756 and fix it if it is affected.

What it is: CVE-2014-9756 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Nov 2015. 
Exploitation: There is no known exploitation of CVE-2014-9756 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2014-9756/ (Markdown: https://insights.sbomify.com/CVE-2014-9756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-9756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-9756
- OSV: https://osv.dev/vulnerability/CVE-2014-9756

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-9756/
Summaries are generated and may contain mistakes; the official description above is the record.