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1.2.1
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richvdh committed Jul 26, 2019
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24 changes: 23 additions & 1 deletion CHANGES.md
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Synapse 1.2.1 (2019-07-26)
==========================

Security update
---------------

This release includes *four* security fixes:

- Prevent an attack where a federated server could send redactions for arbitrary events in v1 and v2 rooms. ([\#5767](https://github.com/matrix-org/synapse/issues/5767))
- Prevent a denial-of-service attack where cycles of redaction events would make Synapse spin infinitely. Thanks to `@lrizika:matrix.org` for identifying and responsibly disclosing this issue. ([0f2ecb961](https://github.com/matrix-org/synapse/commit/0f2ecb961))
- Prevent an attack where users could be joined or parted from public rooms without their consent. Thanks to @Dylanger for identifying and responsibly disclosing this issue. ([\#5744](https://github.com/matrix-org/synapse/issues/5744))
- Fix a vulnerability where a federated server could spoof read-receipts from users on other servers. ([\#5743](https://github.com/matrix-org/synapse/issues/5743))

Note that Synapse 1.2.0 also contained a security fix which was not correctly identified during the original release. The changelog below is now updated.

Synapse 1.2.0 (2019-07-25)
==========================

Expand All @@ -16,6 +31,14 @@ Bugfixes
Synapse 1.2.0rc1 (2019-07-22)
=============================

Security fixes
--------------

This update included a security fix which was initially incorrectly flagged as
a regular bug fix.

- 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. Thanks to `/dev/ponies` for identifying and responsibly disclosing this issue! ([\#5701](https://github.com/matrix-org/synapse/issues/5701))

Features
--------

Expand All @@ -41,7 +64,6 @@ Bugfixes
- Fix bug in #5626 that prevented the original_event field from actually having the contents of the original event in a call to `/relations`. ([\#5654](https://github.com/matrix-org/synapse/issues/5654))
- Fix 3PID bind requests being sent to identity servers as `application/x-form-www-urlencoded` data, which is deprecated. ([\#5658](https://github.com/matrix-org/synapse/issues/5658))
- Fix some problems with authenticating redactions in recent room versions. ([\#5699](https://github.com/matrix-org/synapse/issues/5699), [\#5700](https://github.com/matrix-org/synapse/issues/5700), [\#5707](https://github.com/matrix-org/synapse/issues/5707))
- Ignore redactions of m.room.create events. ([\#5701](https://github.com/matrix-org/synapse/issues/5701))


Updates to the Docker image
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6 changes: 6 additions & 0 deletions debian/changelog
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matrix-synapse-py3 (1.2.1) stable; urgency=medium

* New synapse release 1.2.1.

-- Synapse Packaging team <[email protected]> Fri, 26 Jul 2019 11:32:47 +0100

matrix-synapse-py3 (1.2.0) stable; urgency=medium

[ Amber Brown ]
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except ImportError:
pass

__version__ = "1.2.0"
__version__ = "1.2.1"

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