# CVE-2017-14103: Use after free in n/a

> Remote attackers can execute arbitrary code or cause denial of service via crafted JNG files due to improper pointer management in GraphicsMagick.

- **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:** 1 Sep 2017
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-14103, GHSA-f9pv-j3cq-p428

## What is CVE-2017-14103?

CVE-2017-14103 is a high-severity use after free vulnerability in Graphicsmagick Graphicsmagick, published on 1 Sep 2017. 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

The ReadJNGImage and ReadOneJNGImage functions in coders/png.c in GraphicsMagick 1.3.26 do not properly manage image pointers after certain error conditions, which allows remote attackers to conduct use-after-free attacks via a crafted file, related to a ReadMNGImage out-of-order CloseBlob call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-11403.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2017-14103?

It affects 1 product.


Products: Graphicsmagick Graphicsmagick.

## How do I fix CVE-2017-14103?

Apply the vendor's patch.

## Is CVE-2017-14103 being exploited?

There is no known exploitation of CVE-2017-14103 in the wild and no public exploit code.

## Other vulnerabilities in Graphicsmagick Graphicsmagick

- [CVE-2008-6071](https://insights.sbomify.com/CVE-2008-6071/): Memory corruption in n/a (critical 10.0)
- [CVE-2019-11005](https://insights.sbomify.com/CVE-2019-11005/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-11636](https://insights.sbomify.com/CVE-2017-11636/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-11637](https://insights.sbomify.com/CVE-2017-11637/): Null dereference in n/a (critical 9.8)
- [CVE-2017-11641](https://insights.sbomify.com/CVE-2017-11641/): Denial of service in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-14103 and fix it if it is affected.

What it is: CVE-2017-14103 is a high-severity use after free vulnerability in Graphicsmagick Graphicsmagick, published on 1 Sep 2017. 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-2017-14103 in the wild and no public exploit code.

Affected product: Graphicsmagick Graphicsmagick. 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-2017-14103/ (Markdown: https://insights.sbomify.com/CVE-2017-14103/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-14103
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-14103
- OSV: https://osv.dev/vulnerability/CVE-2017-14103

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-14103/
Summaries are generated and may contain mistakes; the official description above is the record.