# CVE-2022-2320: Memory corruption in xorg-x11-server

> An attacker can exploit a buffer overflow in the Xorg X11 server to execute arbitrary code and escalate privileges to root.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 1 Sep 2022
- **Updated:** 3 Aug 2024
- **Also known as:** AZL-44841, DEBIAN-CVE-2022-2320, GHSA-w5qv-457x-4w67, OESA-2024-1817, OESA-2024-1818, OESA-2024-1819, UBUNTU-CVE-2022-2320

## What is CVE-2022-2320?

CVE-2022-2320 is a high-severity memory corruption vulnerability in X.org X Server, published on 1 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.

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

## Which versions are affected by CVE-2022-2320?

It affects 1 product.


Products: X.org X Server.

## How do I fix CVE-2022-2320?

Apply the vendor's patch.

## Is CVE-2022-2320 being exploited?

There is no known exploitation of CVE-2022-2320 in the wild and no public exploit code.

## Other vulnerabilities in X.org X Server

- [CVE-2026-56000](https://insights.sbomify.com/CVE-2026-56000/): xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent() (critical 9.0)
- [CVE-2017-10971](https://insights.sbomify.com/CVE-2017-10971/): Memory corruption in n/a (high 8.8)
- [CVE-2026-55999](https://insights.sbomify.com/CVE-2026-55999/): xorg-server / xwayland glamor font atlas Heap Buffer Overflow (high 8.5)
- [CVE-2022-2319](https://insights.sbomify.com/CVE-2022-2319/): Memory corruption in xorg-x11-server (high 7.8)
- [CVE-2020-14360](https://insights.sbomify.com/CVE-2020-14360/): Memory corruption in xorg-x11-server (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2320 and fix it if it is affected.

What it is: CVE-2022-2320 is a high-severity memory corruption vulnerability in X.org X Server, published on 1 Sep 2022. 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-2022-2320 in the wild and no public exploit code.

Affected product: X.org X Server. 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-2022-2320/ (Markdown: https://insights.sbomify.com/CVE-2022-2320/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2320
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2320
- OSV: https://osv.dev/vulnerability/CVE-2022-2320

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2320/
Summaries are generated and may contain mistakes; the official description above is the record.