FreeBSD: VID-38D2DF4D-B143-11E9-87E7-901B0E934D69: py-matrix-synapse -- multiple vulnerabilities
Description
Matrix developers report:
The matrix team releases Synapse 1.2.1 as a critical security update. It contains patches relating to redactions and event federation:
Prevent an attack where a federated server could send redactions for arbitrary events in v1 and v2 rooms.
Prevent a denial-of-service attack where cycles of redaction events would make Synapse spin infinitely.
Prevent an attack where users could be joined or parted from public rooms without their consent.
Fix a vulnerability where a federated server could spoof read-receipts from users on other servers.
It was possible for a room moderator to send a redaction for an m.room.create event, which would downgrade the room to version 1.
Solution(s)
- freebsd-upgrade-package-py27-matrix-synapse
- freebsd-upgrade-package-py35-matrix-synapse
- freebsd-upgrade-package-py36-matrix-synapse
- freebsd-upgrade-package-py37-matrix-synapse
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