CVE-2022-29234
MEDIUM severity · CVSS 4.3 · CWE-285
4.3CVSS MEDIUM
Summary
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactLow
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/bigbluebutton/bigbluebutton/pull/13850 ↗
Additional information
- NVD record
- https://github.com/bigbluebutton/bigbluebutton/pull/13850Patch
- https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjvPatch
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Advisory
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1Advisory