# CVE-2022-23950: Denial of service in keylime

> Unprivileged users can prevent Keylime operations by exploiting a fixed temporary path for the Revocation Notifier socket.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Sep 2022
- **Updated:** 27 May 2025
- **Also known as:** GHSA-9r9r-f8xc-m875

## What is CVE-2022-23950?

CVE-2022-23950 is a high-severity denial of service vulnerability in keylime, published on 21 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In Keylime before 6.3.0, Revocation Notifier uses a fixed /tmp path for UNIX domain socket which can allow unprivileged users a method to prohibit keylime operations.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere), CWE-379 (Creation of Temporary File in Directory with Insecure Permissions)

## Which versions are affected by CVE-2022-23950?

It affects 1 product.


Products: Keylime Keylime.

## How do I fix CVE-2022-23950?

No fix has been published for CVE-2022-23950 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-23950 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23950 exists.

## Other vulnerabilities in keylime

- [CVE-2021-43310](https://insights.sbomify.com/CVE-2021-43310/): Auth bypass in keylime (critical 9.8)
- [CVE-2026-1709](https://insights.sbomify.com/CVE-2026-1709/): Keylime Missing Authentication for Critical Function and Improper Authentication (critical 9.4)
- [CVE-2022-23948](https://insights.sbomify.com/CVE-2022-23948/): Information disclosure in keylime (high 7.5)
- [CVE-2022-23949](https://insights.sbomify.com/CVE-2022-23949/): Other in keylime (high 7.5)
- [CVE-2022-23952](https://insights.sbomify.com/CVE-2022-23952/): Information disclosure in keylime (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-23950 and fix it if it is affected.

What it is: CVE-2022-23950 is a high-severity denial of service vulnerability in keylime, published on 21 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23950 exists.

Affected product: keylime. 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-2022-23950/ (Markdown: https://insights.sbomify.com/CVE-2022-23950/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-23950
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-23950
- OSV: https://osv.dev/vulnerability/CVE-2022-23950

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-23950/
Summaries are generated and may contain mistakes; the official description above is the record.