CVE-2022-39335
Summary
| CVE | CVE-2022-39335 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-05-26 14:15:00 UTC |
| Updated | 2023-06-11 04:15:00 UTC |
| Description | Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are legitimate and permitted in their room. However, in versions of Synapse up to and including 1.68.0, a Synapse homeserver answering a query for authorization events does not sufficiently check that the requesting server should be able to access them. The issue was patched in Synapse 1.69.0. Homeserver administrators are advised to upgrade. |
Risk And Classification
Problem Types: CWE-200
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Synapse does not apply enough checks to servers requesting auth events of events in a room · Advisory · matrix-org/synapse · GitHub | MISC | github.com | |
| [SECURITY] Fedora 37 Update: matrix-synapse-1.63.1-3.fc37 - package-announce - Fedora Mailing-Lists | MISC | lists.fedoraproject.org | |
| Faster joins: incoming federation requests during resync may be incorrectly rejected · Issue #13288 · matrix-org/synapse · GitHub | MISC | github.com | |
| Faster Remote Room Joins: tell remote homeservers that we are unable to authorise them if they query a room which has partial state on our server. by reivilibre · Pull Request #13823 · matrix-org/synapse · GitHub | MISC | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.