CVE-2021-34423
Description
A buffer overflow vulnerability was discovered in Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4, Zoom Client for Meetings for Blackberry (for Android and iOS) before version 5.8.1, Zoom Client for Meetings for intune (for Android and iOS) before version 5.8.4, Zoom Client for Meetings for Chrome OS before version 5.0.1, Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) before version 5.8.3, Controllers for Zoom Rooms (for Android, iOS, and Windows) before version 5.8.3, Zoom VDI Windows Meeting Client before version 5.8.4, Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) before version 5.8.4.21112, Zoom VDI Citrix Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112, Zoom VDI VMware Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112, Zoom Meeting SDK for Android before version 5.7.6.1922, Zoom Meeting SDK for iOS before version 5.7.6.1082, Zoom Meeting SDK for macOS before version 5.7.6.1340, Zoom Meeting SDK for Windows before version 5.7.6.1081, Zoom Video SDK (for Android, iOS, macOS, and Windows) before version 1.1.2, Zoom On-Premise Meeting Connector Controller before version 4.8.12.20211115, Zoom On-Premise Meeting Connector MMR before version 4.8.12.20211115, Zoom On-Premise Recording Connector before version 5.1.0.65.20211116, Zoom On-Premise Virtual Room Connector before version 4.4.7266.20211117, Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5692.20211117, Zoom Hybrid Zproxy before version 1.0.1058.20211116, and Zoom Hybrid MMR before version 4.6.20211116.131_x86-64. This can potentially allow a malicious actor to crash the service or application, or leverage this vulnerability to execute arbitrary code.
How to fix
- zoom meetings5.8.3, 5.8.4 or later
- zoom meetings_for_blackberry5.8.1 or later
- zoom meetings_for_intune5.8.4 or later
- zoom meetings_for_chrome_os5.0.1 or later
- zoom rooms_for_conference_rooms5.8.3 or later
- zoom controllers_for_zoom_rooms5.8.3 or later
- zoom virtual_desktop_infrastructure5.8.4 or later
- zoom android_meeting_sdk5.7.6.1922 or later
- zoom iphone_os_meeting_sdk5.7.6.1082 or later
- zoom macos_meeting_sdk5.7.6.1340 or later
- zoom windows_meeting_sdk5.7.6.1081 or later
- zoom android_video_sdk1.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zoom meetings | v < 5.8.3, v < 5.8.4 | 5.8.3, 5.8.4 |
| zoom meetings_for_blackberry | v < 5.8.1 | 5.8.1 |
| zoom meetings_for_intune | v < 5.8.4 | 5.8.4 |
| zoom meetings_for_chrome_os | v < 5.0.1 | 5.0.1 |
| zoom rooms_for_conference_rooms | v < 5.8.3 | 5.8.3 |
| zoom controllers_for_zoom_rooms | v < 5.8.3 | 5.8.3 |
| zoom virtual_desktop_infrastructure | v < 5.8.4 | 5.8.4 |
| zoom android_meeting_sdk | v < 5.7.6.1922 | 5.7.6.1922 |
| zoom iphone_os_meeting_sdk | v < 5.7.6.1082 | 5.7.6.1082 |
| zoom macos_meeting_sdk | v < 5.7.6.1340 | 5.7.6.1340 |
| zoom windows_meeting_sdk | v < 5.7.6.1081 | 5.7.6.1081 |
| zoom android_video_sdk | v < 1.1.2 | 1.1.2 |
| zoom iphone_os_video_sdk | v < 1.1.2 | 1.1.2 |
| zoom macos_video_sdk | v < 1.1.2 | 1.1.2 |
| zoom windows_video_sdk | v < 1.1.2 | 1.1.2 |
| zoom hybrid_mmr | v < 4.6.20211116.131 | 4.6.20211116.131 |
| zoom hybrid_zproxy | v < 1.0.1058.20211116 | 1.0.1058.20211116 |
| zoom zoom_on-premise_meeting_connector_controller | v < 4.8.12.20211115 | 4.8.12.20211115 |
| zoom zoom_on-premise_meeting_connector_mmr | v < 4.8.12.20211115 | 4.8.12.20211115 |
| zoom zoom_on-premise_recording_connector | v < 5.1.0.65.20211116 | 5.1.0.65.20211116 |
| zoom zoom_on-premise_virtual_room_connector | v < 4.4.7266.20211117 | 4.4.7266.20211117 |
| zoom zoom_on-premise_virtual_room_connector_load_balancer | v < 2.5.5692.20211117 | 2.5.5692.20211117 |
| zoom vdi_azure_virtual_desktop | v < 5.8.4.21112 | 5.8.4.21112 |
| zoom vdi_citrix | v < 5.8.4.21112 | 5.8.4.21112 |
| zoom vdi_vmware | v < 5.8.4.21112 | 5.8.4.21112 |
| zoom vdi_windows_meeting_client | v < 5.8.4 | 5.8.4 |
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