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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The OpenAFS Foundation | OpenAFS | 1.0 – < 1.6.24, 1.8.0 – < 1.8.12.2, 1.9.0 – < 1.9.1 | 1.6.24 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | openafs | 1.8.13-1 | — |
| Debian 12 | openafs | 1.8.9-1+deb12u1 | DSA-5842-1 |
| Debian 11 | openafs | 1.8.6-5+deb11u1 | DLA-4168-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | openafs | No fix yet | — |
| Ubuntu 22.04 LTS | openafs | No fix yet | — |
| Ubuntu 20.04 LTS | openafs | No fix yet | — |
| Ubuntu 18.04 LTS | openafs | No fix yet | — |
| Ubuntu 16.04 LTS | openafs | No fix yet | — |
Advisories 3
- DSA-5842-1 openafs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4168-1 openafs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- WID-SEC-2024-3448 OpenAFS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 18, 2025