This page displays vulnerability information about FreeBSD Ports.
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|2327234d-fc4b-11ea-adef-641c67a117d8||py-matrix-synapse -- malformed events may prevent users from joining federated rooms|
Affected Synapse versions assume that all events have an "origin" field set. If an event without the "origin" field is sent into a federated room, servers not already joined to the room will be unable to do so due to failing to fetch the malformed event.
An attacker could cause a denial of service by deliberately sending a malformed event into a room, thus preventing new servers (and thus their users) from joining the room.