CVE-2022-41963
Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked.
Does this matter?
Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own.
Description
BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. The attacker must be a meeting participant. This issue is patched in version 2.4.3 an version 2.5-alpha-1
- CVSS 3.1
- 3.1 LOWCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.42% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-281
- Affected
- bigbluebutton/bigbluebutton
- Source
- security-advisories@github.com
References
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3Release Notes, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpPatch, Release Notes, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3Release Notes, Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfpPatch, Release Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.