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

Medium 6.5 Published 14 Nov 2024 Updated 23 Dec 2025

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

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

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

Which versions are affected by CVE-2024-10396?

It affects 1 product.

Products include 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.

Sources

Also known as DEBIAN-CVE-2024-10396, GHSA-mqv3-f225-3xw2, UBUNTU-CVE-2024-10396.