# CVE-2016-0647: Denial of service in n/a

> Local users can cause a denial of service in MySQL and MariaDB databases via unspecified vectors related to Full-Text Search.

- **Severity:** Medium 5.5 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Apr 2016
- **Updated:** 15 Oct 2024
- **Also known as:** ALPINE-CVE-2016-0647, GHSA-w2fq-mv2v-xvm5, UBUNTU-CVE-2016-0647

## What is CVE-2016-0647?

CVE-2016-0647 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 21 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Unspecified vulnerability in Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier and MariaDB before 5.5.49, 10.0.x before 10.0.25, and 10.1.x before 10.1.14 allows local users to affect availability via vectors related to FTS.

## Which versions are affected by CVE-2016-0647?

It affects 7 products.


Products: Debian Debian Linux, Ibm Powerkvm, Mariadb Mariadb, Opensuse Leap, Oracle Linux, Oracle Mysql, Redhat Enterprise Linux.

## How do I fix CVE-2016-0647?

Upgrade to a fixed version.

## Is CVE-2016-0647 being exploited?

There is no known exploitation of CVE-2016-0647 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-0647 and fix it if it is affected.

What it is: CVE-2016-0647 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 21 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-0647 in the wild and no public exploit code.

Affected product: Debian Debian 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-2016-0647/ (Markdown: https://insights.sbomify.com/CVE-2016-0647/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-0647
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-0647
- OSV: https://osv.dev/vulnerability/CVE-2016-0647

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-0647/
Summaries are generated and may contain mistakes; the official description above is the record.