# CVE-2022-44789: Memory corruption in n/a

> An attacker can achieve remote code execution via memory corruption by loading a crafted JavaScript file into the MuJS engine.

- **Severity:** High 8.8 (`CVSS:3.1/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:** 23 Nov 2022
- **Updated:** 25 Apr 2025
- **Also known as:** DEBIAN-CVE-2022-44789, GHSA-57j3-gx8q-fwcj, OESA-2023-1137, OESA-2023-1138, UBUNTU-CVE-2022-44789

## What is CVE-2022-44789?

CVE-2022-44789 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Nov 2022. 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

A logical issue in O_getOwnPropertyDescriptor() in Artifex MuJS 1.0.0 through 1.3.x before 1.3.2 allows an attacker to achieve Remote Code Execution through memory corruption, via the loading of a crafted JavaScript file.

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

## Which versions are affected by CVE-2022-44789?

It affects 3 products.


Products: Artifex Mujs, Debian Debian Linux, Fedoraproject Fedora.

## How do I fix CVE-2022-44789?

Upgrade to a fixed version.

## Is CVE-2022-44789 being exploited?

There is no known exploitation of CVE-2022-44789 in the wild and no public exploit code.

Public exploit code:

- https://github.com/alalng/CVE-2022-44789 (github_poc): https://github.com/alalng/CVE-2022-44789

## Other vulnerabilities in Debian Debian Linux

- [CVE-2021-33796](https://insights.sbomify.com/CVE-2021-33796/): Use after free in MuJS (critical 10.0)
- [CVE-2021-33797](https://insights.sbomify.com/CVE-2021-33797/): Integer overflow in mujs (critical 9.8)
- [CVE-2021-45005](https://insights.sbomify.com/CVE-2021-45005/): Memory corruption in n/a (critical 9.8)
- [CVE-2019-12798](https://insights.sbomify.com/CVE-2019-12798/): Integer overflow in n/a (critical 9.8)
- [CVE-2019-11411](https://insights.sbomify.com/CVE-2019-11411/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-44789 and fix it if it is affected.

What it is: CVE-2022-44789 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Nov 2022. 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-2022-44789 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-2022-44789/ (Markdown: https://insights.sbomify.com/CVE-2022-44789/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-44789
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-44789
- OSV: https://osv.dev/vulnerability/CVE-2022-44789

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-44789/
Summaries are generated and may contain mistakes; the official description above is the record.