The matrix-sdk-base crate is unable to handle responses that include custom m.room.join_rules values due to a serialization bug.
This can be exploited to cause a denial-of-service condition, if a user is invited to a room with non-standard join rules, the crate's sync process will stall, preventing further processing for all rooms.
Patches
The issue is fixed in matrix-sdk-base 0.16.0.
Workarounds
Users can leave affected rooms on another client to mitigate the issue.
References
The issue was fixed in #5924.
The matrix-sdk-base crate is unable to handle responses that include custom m.room.join_rules values due to a serialization bug.
This can be exploited to cause a denial-of-service condition, if a user is invited to a room with non-standard join rules, the crate's sync process will stall, preventing further processing for all rooms.
Patches
The issue is fixed in matrix-sdk-base 0.16.0.
Workarounds
Users can leave affected rooms on another client to mitigate the issue.
References
The issue was fixed in #5924.