# CVE-2017-6210: Null dereference in n/a

> Local guest OS users can crash the QEMU process by destroying context zero, causing a denial of service via a NULL pointer dereference in virglrenderer.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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:** 15 Mar 2017
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-6210, GHSA-c3q9-4cx6-6r4j

## What is CVE-2017-6210?

CVE-2017-6210 is a medium-severity vulnerability in n/a, published on 15 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The vrend_decode_reset function in vrend_decode.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (NULL pointer dereference and QEMU process crash) by destroying context 0 (zero).

Weakness: CWE-476 (NULL Pointer Dereference)

## Which versions are affected by CVE-2017-6210?

It affects 1 product.


Products: Virglrenderer Project Virglrenderer.

## How do I fix CVE-2017-6210?

Upgrade to a fixed version.

## Is CVE-2017-6210 being exploited?

There is no known exploitation of CVE-2017-6210 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-5580](https://insights.sbomify.com/CVE-2017-5580/): Memory corruption in n/a (high 7.1)
- [CVE-2016-10214](https://insights.sbomify.com/CVE-2016-10214/): Denial of service in n/a (medium 6.5)
- [CVE-2016-10163](https://insights.sbomify.com/CVE-2016-10163/): Denial of service in n/a (medium 6.5)
- [CVE-2017-5937](https://insights.sbomify.com/CVE-2017-5937/): Null dereference in n/a (medium 6.5)
- [CVE-2017-5993](https://insights.sbomify.com/CVE-2017-5993/): Denial of service in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-6210 and fix it if it is affected.

What it is: CVE-2017-6210 is a medium-severity vulnerability in n/a, published on 15 Mar 2017. 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-2017-6210 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-2017-6210/ (Markdown: https://insights.sbomify.com/CVE-2017-6210/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6210
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6210
- OSV: https://osv.dev/vulnerability/CVE-2017-6210

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-6210/
Summaries are generated and may contain mistakes; the official description above is the record.