# CVE-2024-10396: Fileserver crash and possible information leak on StoreACL/FetchACL

> An authenticated user can crash the OpenAFS file server and potentially leak uninitialized memory by sending malformed ACLs via RPC.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **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:** 14 Nov 2024
- **Updated:** 23 Dec 2025
- **Also known as:** DEBIAN-CVE-2024-10396, GHSA-mqv3-f225-3xw2, UBUNTU-CVE-2024-10396

## What is CVE-2024-10396?

CVE-2024-10396 is a medium-severity vulnerability in The OpenAFS Foundation OpenAFS, published on 14 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An authenticated user can provide a malformed ACL to the fileserver's StoreACL RPC, causing the fileserver to crash, possibly expose uninitialized memory, and possibly store garbage data in the audit log. Malformed ACLs provided in responses to client FetchACL RPCs can cause client processes to crash and possibly expose uninitialized memory into other ACLs stored on the server.

Weakness: CWE-772 (Missing Release of Resource after Effective Lifetime)

## Which versions are affected by CVE-2024-10396?

It affects 1 product.


Products: Openafs Openafs.

## How do I fix CVE-2024-10396?

Apply the vendor's patch.

## Is CVE-2024-10396 being exploited?

There is no known exploitation of CVE-2024-10396 in the wild and no public exploit code.

## Other vulnerabilities in The OpenAFS Foundation OpenAFS

- [CVE-2009-1251](https://insights.sbomify.com/CVE-2009-1251/): Memory corruption in n/a (critical 10.0)
- [CVE-2024-10394](https://insights.sbomify.com/CVE-2024-10394/): Theft of credentials in Unix client PAGs (high 8.4)
- [CVE-2024-10397](https://insights.sbomify.com/CVE-2024-10397/): Preallocated buffer overflows in XDR responses (high 7.7)
- [CVE-2019-18601](https://insights.sbomify.com/CVE-2019-18601/): Denial of service in n/a (high 7.5)
- [CVE-2011-0430](https://insights.sbomify.com/CVE-2011-0430/): Use after free in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-10396 and fix it if it is affected.

What it is: CVE-2024-10396 is a medium-severity vulnerability in The OpenAFS Foundation OpenAFS, published on 14 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-10396 in the wild and no public exploit code.

Affected product: The OpenAFS Foundation OpenAFS. 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-2024-10396/ (Markdown: https://insights.sbomify.com/CVE-2024-10396/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-10396
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-10396
- OSV: https://osv.dev/vulnerability/CVE-2024-10396

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-10396/
Summaries are generated and may contain mistakes; the official description above is the record.