# CVE-2016-9317: Denial of service in n/a

> Remote attackers can cause a system hang via oversized images in the GD Graphics Library, requiring an upgrade to mitigate.

- **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:** 26 Jan 2017
- **Updated:** 6 Aug 2024
- **Also known as:** ALPINE-CVE-2016-9317, DEBIAN-CVE-2016-9317, GHSA-7pf6-3qr6-mjfr, UBUNTU-CVE-2016-9317

## What is CVE-2016-9317?

CVE-2016-9317 is a medium-severity denial of service vulnerability in n/a, published on 26 Jan 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 gdImageCreate function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to cause a denial of service (system hang) via an oversized image.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2016-9317?

It affects 1 product.


Products: Libgd Libgd.

## How do I fix CVE-2016-9317?

Upgrade to a fixed version.

## Is CVE-2016-9317 being exploited?

There is no known exploitation of CVE-2016-9317 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-10166](https://insights.sbomify.com/CVE-2016-10166/): Integer overflow in n/a (critical 9.8)
- [CVE-2016-6912](https://insights.sbomify.com/CVE-2016-6912/): Use after free in n/a (critical 9.8)
- [CVE-2016-8670](https://insights.sbomify.com/CVE-2016-8670/): Integer overflow in n/a (critical 9.8)
- [CVE-2016-5767](https://insights.sbomify.com/CVE-2016-5767/): Integer overflow in n/a (high 8.8)
- [CVE-2017-6363](https://insights.sbomify.com/CVE-2017-6363/): Memory corruption in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-9317 and fix it if it is affected.

What it is: CVE-2016-9317 is a medium-severity denial of service vulnerability in n/a, published on 26 Jan 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-2016-9317 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-2016-9317/ (Markdown: https://insights.sbomify.com/CVE-2016-9317/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-9317
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-9317
- OSV: https://osv.dev/vulnerability/CVE-2016-9317

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-9317/
Summaries are generated and may contain mistakes; the official description above is the record.