# CVE-2017-18215: Memory corruption in n/a

> An out-of-bounds write in the PNG decoder allows attackers to cause crashes or execute arbitrary code via malicious images.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 5 Mar 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-99x2-jhx8-rqm7

## What is CVE-2017-18215?

CVE-2017-18215 is a critical memory corruption vulnerability in Opensuse Leap, published on 5 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

xvpng.c in xv 3.10a has memory corruption (out-of-bounds write) when decoding PNG comment fields, leading to crashes or potentially code execution, because it uses an incorrect length value.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2017-18215?

It affects 2 products.


Products: Opensuse Leap, Xv Project Xv.

## How do I fix CVE-2017-18215?

No fix has been published for CVE-2017-18215 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-18215 being exploited?

There is no known exploitation of CVE-2017-18215 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Leap

- [CVE-2015-4902](https://insights.sbomify.com/CVE-2015-4902/): Oracle Java SE Integrity Check (medium 5.3, exploited in the wild)
- [CVE-2017-14804](https://insights.sbomify.com/CVE-2017-14804/): package builds could use directory traversal to write outside of target area (critical 9.9)
- [CVE-2019-20787](https://insights.sbomify.com/CVE-2019-20787/): Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size. (critical 9.8)
- [CVE-2019-8341](https://insights.sbomify.com/CVE-2019-8341/): Code injection in n/a (critical 9.8)
- [CVE-2019-6438](https://insights.sbomify.com/CVE-2019-6438/): Other in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-18215 and fix it if it is affected.

What it is: CVE-2017-18215 is a critical memory corruption vulnerability in Opensuse Leap, published on 5 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-18215 in the wild and no public exploit code.

Affected product: Opensuse Leap. 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-2017-18215/ (Markdown: https://insights.sbomify.com/CVE-2017-18215/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-18215
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-18215
- OSV: https://osv.dev/vulnerability/CVE-2017-18215

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-18215/
Summaries are generated and may contain mistakes; the official description above is the record.