# CVE-2019-8355: Integer overflow in n/a

> An integer overflow in SoX leads to a heap-based buffer overflow, potentially allowing attackers to execute arbitrary code or cause a denial of service.

- **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:** 15 Feb 2019
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-8355, GHSA-6fj7-6wcf-937v, UBUNTU-CVE-2019-8355

## What is CVE-2019-8355?

CVE-2019-8355 is a medium-severity vulnerability in n/a, published on 15 Feb 2019. 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

An issue was discovered in SoX 14.4.2. In xmalloc.h, there is an integer overflow on the result of multiplication fed into the lsx_valloc macro that wraps malloc. When the buffer is allocated, it is smaller than expected, leading to a heap-based buffer overflow in channels_start in remix.c.

Weakness: CWE-787 (Out-of-bounds Write), CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2019-8355?

It affects 1 product.


Products: Sound Exchange Project Sound Exchange.

## How do I fix CVE-2019-8355?

Apply the vendor's patch.

## Is CVE-2019-8355 being exploited?

There is no known exploitation of CVE-2019-8355 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-40426](https://insights.sbomify.com/CVE-2021-40426/): Memory corruption in libsox (critical 10.0)
- [CVE-2021-3643](https://insights.sbomify.com/CVE-2021-3643/): Information disclosure in sox (critical 9.1)
- [CVE-2021-23159](https://insights.sbomify.com/CVE-2021-23159/): Memory corruption in SoX (Sound eXchange) (medium 5.5)
- [CVE-2021-23172](https://insights.sbomify.com/CVE-2021-23172/): Memory corruption in SoX (Sound eXchange) (medium 5.5)
- [CVE-2021-23210](https://insights.sbomify.com/CVE-2021-23210/): Denial of service in SoX (Sound eXchange) (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-8355 and fix it if it is affected.

What it is: CVE-2019-8355 is a medium-severity vulnerability in n/a, published on 15 Feb 2019. 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-2019-8355 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-2019-8355/ (Markdown: https://insights.sbomify.com/CVE-2019-8355/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-8355
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-8355
- OSV: https://osv.dev/vulnerability/CVE-2019-8355

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-8355/
Summaries are generated and may contain mistakes; the official description above is the record.