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changelog for 0.28.1

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Matthew Hodgson 2018-05-01 18:28:14 +01:00
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Changes in synapse v0.28.0-rc1 (2018-04-26)
===========================================
Changes in synapse v0.28.1 (2018-05-01)
=======================================
SECURITY UPDATE
* Clamp the allowed values of event depth received over federation to be
[0, 2**63 - 1]. This mitigates an attack where malicious events
injected with depth = 2**63 - 1 render rooms unusable. Depth is used to
determine the cosmetic ordering of events within a room, and so the ordering
of events in such a room will default to using stream_ordering rather than depth
(topological_ordering).
This is a temporary solution to mitigate abuse in the wild, whilst a long solution
is being implemented to improve how the depth parameter is used.
Full details at
https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI/edit#
* Pin Twisted to <18.4 until we stop using the private _OpenSSLECCurve API.
Changes in synapse v0.28.0 (2018-04-26)
=======================================
Bug Fixes: