# CVE-2010-4539: Null dereference in n/a

> Remote authenticated users can crash the Apache HTTP Server via a NULL pointer dereference in the mod_dav_svn module.

- **Severity:** Medium 6.8 (`AV:N/AC:L/Au:S/C:N/I:N/A:C`)
- **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:** 7 Jan 2011
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2010-4539, GHSA-m28q-h289-m2g5

## What is CVE-2010-4539?

CVE-2010-4539 is a medium-severity vulnerability in n/a, published on 7 Jan 2011. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The walk function in repos.c in the mod_dav_svn module for the Apache HTTP Server, as distributed in Apache Subversion before 1.6.15, allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger the walking of SVNParentPath collections.

Weakness: CWE-399

## Which versions are affected by CVE-2010-4539?

It affects 1 product.


Products: Apache Subversion.

## How do I fix CVE-2010-4539?

Upgrade to a fixed version.

## Is CVE-2010-4539 being exploited?

There is no known exploitation of CVE-2010-4539 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-9800](https://insights.sbomify.com/CVE-2017-9800/): A maliciously constructed svn+ssh:// URL would cause Subversion clients before 1.8.19, 1.9.x before 1.9.7, and 1.10.0.x through 1.10.0-alpha (critical 9.8)
- [CVE-2013-4246](https://insights.sbomify.com/CVE-2013-4246/): Denial of service in n/a (high 8.8)
- [CVE-2015-5259](https://insights.sbomify.com/CVE-2015-5259/): Integer overflow in n/a (high 8.6)
- [CVE-2024-45720](https://insights.sbomify.com/CVE-2024-45720/): Apache Subversion: Command line argument injection on Windows platforms (high 8.2)
- [CVE-2015-0202](https://insights.sbomify.com/CVE-2015-0202/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-4539 and fix it if it is affected.

What it is: CVE-2010-4539 is a medium-severity vulnerability in n/a, published on 7 Jan 2011. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2010-4539 in the wild and no public exploit code.

Affected product: n/a. 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-2010-4539/ (Markdown: https://insights.sbomify.com/CVE-2010-4539/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-4539
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-4539
- OSV: https://osv.dev/vulnerability/CVE-2010-4539

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-4539/
Summaries are generated and may contain mistakes; the official description above is the record.