BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.
| Software | From | Fixed in |
|---|---|---|
| bigbluebutton / bigbluebutton | 2.4-alpha1 | 2.4-alpha1.x |
| bigbluebutton / bigbluebutton | 2.4-alpha2 | 2.4-alpha2.x |
| bigbluebutton / bigbluebutton | 2.4-beta2 | 2.4-beta2.x |
| bigbluebutton / bigbluebutton | 2.4-beta1 | 2.4-beta1.x |
| bigbluebutton / bigbluebutton | 2.4-beta3 | 2.4-beta3.x |
| bigbluebutton / bigbluebutton | 2.4-beta4 | 2.4-beta4.x |
| bigbluebutton / bigbluebutton | 2.2.0 | 2.3.18 |
| bigbluebutton / bigbluebutton | 2.4-rc5 | 2.4-rc5.x |
| bigbluebutton / bigbluebutton | 2.4-rc4 | 2.4-rc4.x |
| bigbluebutton / bigbluebutton | 2.4-rc3 | 2.4-rc3.x |
| bigbluebutton / bigbluebutton | 2.4-rc1 | 2.4-rc1.x |