# CVE-2022-46342: Use after free in xorg-x11-server

> A use-after-free flaw in the X.Org server allows local attackers to escalate privileges on affected systems.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 14 Dec 2022
- **Updated:** 22 Apr 2025
- **Also known as:** AZL-44661, DEBIAN-CVE-2022-46342, GHSA-5hp7-2mv5-p69r, UBUNTU-CVE-2022-46342

## What is CVE-2022-46342?

CVE-2022-46342 is a high-severity use after free vulnerability in Debian Debian Linux, published on 14 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X se

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2022-46342?

It affects 3 products.


Products: Debian Debian Linux, Fedoraproject Fedora, X.org X Server.

## How do I fix CVE-2022-46342?

Apply the vendor's patch.

## Is CVE-2022-46342 being exploited?

There is no known exploitation of CVE-2022-46342 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-46342 and fix it if it is affected.

What it is: CVE-2022-46342 is a high-severity use after free vulnerability in Debian Debian Linux, published on 14 Dec 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-46342 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2022-46342/ (Markdown: https://insights.sbomify.com/CVE-2022-46342/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-46342
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-46342
- OSV: https://osv.dev/vulnerability/CVE-2022-46342

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-46342/
Summaries are generated and may contain mistakes; the official description above is the record.