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| author | Matthew Hodgson <matthew@matrix.org> | 2018-05-01 18:28:14 +0100 |
|---|---|---|
| committer | Matthew Hodgson <matthew@matrix.org> | 2018-05-01 18:28:23 +0100 |
| commit | 8e6bd0e32456e66ec8df3af62ecacf291cf4632f (patch) | |
| tree | baf5fd6d2a3f4aa1c42c14d8ecf2949f9721f046 /CHANGES.rst | |
| parent | Update __init__.py (diff) | |
| download | synapse-8e6bd0e32456e66ec8df3af62ecacf291cf4632f.tar.xz | |
changelog for 0.28.1 v0.28.1
Diffstat (limited to 'CHANGES.rst')
| -rw-r--r-- | CHANGES.rst | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/CHANGES.rst b/CHANGES.rst index 74f454cb5b..8da5e0dbf6 100644 --- a/CHANGES.rst +++ b/CHANGES.rst @@ -1,5 +1,26 @@ -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: |