# CVE-2022-4968: Information disclosure in Netplan

> Local attackers can read WireGuard private keys due to improper permission handling in Netplan, compromising network security.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **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:** 7 Jun 2024
- **Updated:** 3 Aug 2024
- **Also known as:** AZL-51921, AZL-51964, DEBIAN-CVE-2022-4968, GHSA-xpvm-9wx5-vjpw, UBUNTU-CVE-2022-4968, USN-6851-1

## What is CVE-2022-4968?

CVE-2022-4968 is a medium-severity vulnerability in Canonical Ltd. Netplan, published on 7 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

netplan leaks the private key of wireguard to local users. Versions after 1.0 are not affected.

Weakness: CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere)

## Which versions are affected by CVE-2022-4968?

It affects 1 product.


Products: Canonical Netplan.

## How do I fix CVE-2022-4968?

Upgrade to a fixed version.

## Is CVE-2022-4968 being exploited?

There is no known exploitation of CVE-2022-4968 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4968 and fix it if it is affected.

What it is: CVE-2022-4968 is a medium-severity vulnerability in Canonical Ltd. Netplan, published on 7 Jun 2024. 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-2022-4968 in the wild and no public exploit code.

Affected product: Canonical Ltd. Netplan. 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-2022-4968/ (Markdown: https://insights.sbomify.com/CVE-2022-4968/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4968
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4968
- OSV: https://osv.dev/vulnerability/CVE-2022-4968

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4968/
Summaries are generated and may contain mistakes; the official description above is the record.