# CVE-2010-4022: Denial of service in n/a

> Remote attackers can cause a denial of service in the MIT Kerberos KDC propagation daemon when running in standalone mode.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Feb 2011
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2010-4022, GHSA-x83g-f3w6-mr3j

## What is CVE-2010-4022?

CVE-2010-4022 is a medium-severity denial of service vulnerability in Mit Kerberos 5, published on 10 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The do_standalone function in the MIT krb5 KDC database propagation daemon (kpropd) in Kerberos 1.7, 1.8, and 1.9, when running in standalone mode, does not properly handle when a worker child process "exits abnormally," which allows remote attackers to cause a denial of service (listening process termination, no new connections, and lack of updates in slave KVC) via unspecified vectors.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2010-4022?

It affects 1 product.


Products: Mit Kerberos 5.

## How do I fix CVE-2010-4022?

Apply the vendor's patch.

## Is CVE-2010-4022 being exploited?

There is no known exploitation of CVE-2010-4022 in the wild and no public exploit code.

## Other vulnerabilities in Mit Kerberos 5

- [CVE-2011-0285](https://insights.sbomify.com/CVE-2011-0285/): Use after free in n/a (critical 10.0)
- [CVE-2008-0947](https://insights.sbomify.com/CVE-2008-0947/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-5902](https://insights.sbomify.com/CVE-2007-5902/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-4743](https://insights.sbomify.com/CVE-2007-4743/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-3999](https://insights.sbomify.com/CVE-2007-3999/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-4022 and fix it if it is affected.

What it is: CVE-2010-4022 is a medium-severity denial of service vulnerability in Mit Kerberos 5, published on 10 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2010-4022 in the wild and no public exploit code.

Affected product: Mit Kerberos 5. 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-2010-4022/ (Markdown: https://insights.sbomify.com/CVE-2010-4022/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-4022
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-4022
- OSV: https://osv.dev/vulnerability/CVE-2010-4022

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-4022/
Summaries are generated and may contain mistakes; the official description above is the record.