Bugzilla – Bug 1211782
VUL-0: CVE-2022-39335: matrix-synapse: Synapse does not apply enough checks to servers requesting auth events of events in a room
Last modified: 2023-05-29 02:58:33 UTC
CVE-2022-39335 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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-39335 https://bugzilla.redhat.com/show_bug.cgi?id=2209960 https://www.cve.org/CVERecord?id=CVE-2022-39335 http://www.cvedetails.com/cve/CVE-2022-39335/ https://github.com/matrix-org/synapse/issues/13288 https://github.com/matrix-org/synapse/pull/13823 https://github.com/matrix-org/synapse/security/advisories/GHSA-45cj-f97f-ggwv
Fixed version >= v1.69.0. SUSE:Factory/matrix-synapse ships version v1.77.0, so nothing to do here. Closing