mirror of
https://mau.dev/maunium/synapse.git
synced 2024-06-01 18:28:56 +02:00
55b0aa847a
Weakness in auth chain indexing allows DoS from remote room members through disk fill and high CPU usage. A remote Matrix user with malicious intent, sharing a room with Synapse instances before 1.104.1, can dispatch specially crafted events to exploit a weakness in how the auth chain cover index is calculated. This can induce high CPU consumption and accumulate excessive data in the database of such instances, resulting in a denial of service. Servers in private federations, or those that do not federate, are not affected. |
||
|---|---|---|
| .. | ||
| controllers | ||
| databases | ||
| engines | ||
| schema | ||
| util | ||
| __init__.py | ||
| _base.py | ||
| background_updates.py | ||
| database.py | ||
| keys.py | ||
| prepare_database.py | ||
| push_rule.py | ||
| roommember.py | ||
| types.py | ||