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Medium · 4.0 CVE-2021-34418 EUVD-2021-21076GHSA-9m9w-fffc-45mm

Pre-auth Null pointer crash in on-premise web console

Published Nov 11, 2021 · Updated Sep 16, 2024 · Assigned by Zoom

Description

The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.

Affected products

VendorProductAffectedFixed
Zoom Video Communications Zoom On-Premise Meeting Connector unspecified – < 4.6.239.20200613 4.6.239.20200613
Zoom Video Communications Zoom On-Premise Meeting Connector MMR unspecified – < 4.6.239.20200613 4.6.239.20200613
Zoom Video Communications Zoom On-Premise Recording Connector unspecified – < 3.8.42.20200905 3.8.42.20200905
Zoom Video Communications Zoom On-Premise Virtual Room Connector unspecified – < 4.4.6344.20200612 4.4.6344.20200612
Zoom Video Communications Zoom On-Premise Virtual Room Connector Load Balancer unspecified – < 2.5.5492.20200616 2.5.5492.20200616

References