# CVE-2022-23951: Denial of service in keylime

> Attackers can cause denial of service in Keylime by sending malicious ZIP data in agent quote responses.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 21 Sep 2022
- **Updated:** 27 May 2025
- **Also known as:** GHSA-6xx7-m45w-76m2

## What is CVE-2022-23951?

CVE-2022-23951 is a medium-severity denial of service vulnerability in keylime, published on 21 Sep 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

In Keylime before 6.3.0, quote responses from the agent can contain possibly untrusted ZIP data which can lead to zip bombs.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2022-23951?

It affects 1 product.


Products: Keylime Keylime.

## How do I fix CVE-2022-23951?

No fix has been published for CVE-2022-23951 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-23951 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23951 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-2022-23950](https://insights.sbomify.com/CVE-2022-23950/): Denial of service in keylime (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-23951 and fix it if it is affected.

What it is: CVE-2022-23951 is a medium-severity denial of service vulnerability in keylime, published on 21 Sep 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23951 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-2022-23951/ (Markdown: https://insights.sbomify.com/CVE-2022-23951/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-23951
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-23951
- OSV: https://osv.dev/vulnerability/CVE-2022-23951

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-23951/
Summaries are generated and may contain mistakes; the official description above is the record.