CVE-2022-39200
Summary
| CVE | CVE-2022-39200 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-09-12 20:15:00 UTC |
| Updated | 2022-09-15 18:53:00 UTC |
| Description | Dendrite is a Matrix homeserver written in Go. In affected versions events retrieved from a remote homeserver using the `/get_missing_events` path did not have their signatures verified correctly. This could potentially allow a remote homeserver to provide invalid/modified events to Dendrite via this endpoint. Note that this does not apply to events retrieved through other endpoints (e.g. `/event`, `/state`) as they have been correctly verified. Homeservers that have federation disabled are not vulnerable. The problem has been fixed in Dendrite 0.9.8. Users are advised to upgrade. There are no known workarounds for this issue. |
Risk And Classification
Problem Types: CWE-347
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Signature checks not applied to some retrieved missing events · Advisory · matrix-org/dendrite · GitHub | CONFIRM | github.com | |
| Fix missing signature check on the `/get_missing_events` response · matrix-org/dendrite@2792d04 · 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.
Legacy QID Mappings
- 502506 Alpine Linux Security Update for dendrite