# CVE-2022-42012: Denial of service in n/a

> An authenticated attacker can crash D-Bus daemon and related programs by sending malformed messages with file descriptors.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 9 Oct 2022
- **Updated:** 9 Jun 2025
- **Also known as:** ALPINE-CVE-2022-42012, AZL-11093, DEBIAN-CVE-2022-42012, GHSA-7v94-mgqj-cj58, JLSEC-2025-21, UBUNTU-CVE-2022-42012

## What is CVE-2022-42012?

CVE-2022-42012 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 9 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. An authenticated attacker can cause dbus-daemon and other programs that use libdbus to crash by sending a message with attached file descriptors in an unexpected format.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-42012?

It affects 2 products.


Products: Fedoraproject Fedora, Freedesktop Dbus.

## How do I fix CVE-2022-42012?

Upgrade to a fixed version.

## Is CVE-2022-42012 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42012 exists.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-42012 and fix it if it is affected.

What it is: CVE-2022-42012 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 9 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42012 exists.

Affected product: Fedoraproject Fedora. 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-2022-42012/ (Markdown: https://insights.sbomify.com/CVE-2022-42012/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-42012
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-42012
- OSV: https://osv.dev/vulnerability/CVE-2022-42012

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-42012/
Summaries are generated and may contain mistakes; the official description above is the record.