# CVE-2016-5767: Integer overflow in n/a

> Remote attackers can cause a denial of service via crafted image dimensions due to an integer overflow in the GD Graphics Library.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 7 Aug 2016
- **Updated:** 6 Aug 2024
- **Also known as:** ALPINE-CVE-2016-5767, DEBIAN-CVE-2016-5767, GHSA-8h88-m6m2-5756

## What is CVE-2016-5767?

CVE-2016-5767 is a high-severity vulnerability in n/a, published on 7 Aug 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Integer overflow in the gdImageCreate function in gd.c in the GD Graphics Library (aka libgd) before 2.0.34RC1, as used in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted image dimensions.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2016-5767?

It affects 1 product.


Products: Libgd Libgd.

## How do I fix CVE-2016-5767?

Upgrade to a fixed version.

## Is CVE-2016-5767 being exploited?

There is no known exploitation of CVE-2016-5767 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-2017-6363](https://insights.sbomify.com/CVE-2017-6363/): Memory corruption in n/a (high 8.1)
- [CVE-2016-10168](https://insights.sbomify.com/CVE-2016-10168/): Integer overflow in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-5767 and fix it if it is affected.

What it is: CVE-2016-5767 is a high-severity vulnerability in n/a, published on 7 Aug 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2016-5767 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-2016-5767/ (Markdown: https://insights.sbomify.com/CVE-2016-5767/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-5767
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-5767
- OSV: https://osv.dev/vulnerability/CVE-2016-5767

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-5767/
Summaries are generated and may contain mistakes; the official description above is the record.