CVE-2021-34423: Buffer overflow in Zoom client and other products
First published: Wed Nov 24 2021(Updated: )
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.
Credit: security@zoom.us
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zoom Meetings | <5.8.3 | |
| Google Android | ||
| Zoom Meetings | <5.8.4 | |
| Apple macOS | ||
| Apple iPhone OS | ||
| Linux Linux kernel | ||
| Microsoft Windows | ||
| Zoom Meetings For Blackberry | <5.8.1 | |
| Zoom Meetings For Intune | <5.8.4 | |
| Zoom Meetings For Chrome Os | <5.0.1 | |
| Zoom Rooms For Conference Rooms | <5.8.3 | |
| Zoom Controllers For Zoom Rooms | <5.8.3 | |
| Zoom Virtual Desktop Infrastructure | <5.8.4 | |
| Zoom Android Meeting Sdk | <5.7.6.1922 | |
| Zoom Iphone Os Meeting Sdk | <5.7.6.1082 | |
| Zoom Macos Meeting Sdk | <5.7.6.1340 | |
| Zoom Windows Meeting Sdk | <5.7.6.1081 | |
| Zoom Android Video Sdk | <1.1.2 | |
| Zoom Iphone Os Video Sdk | <1.1.2 | |
| Zoom Macos Video Sdk | <1.1.2 | |
| Zoom Windows Video Sdk | <1.1.2 | |
| Zoom Hybrid MMR | <4.6.20211116.131 | |
| Zoom Hybrid Zproxy | <1.0.1058.20211116 | |
| Zoom Zoom On-premise Meeting Connector Controller | <4.8.12.20211115 | |
| Zoom Zoom On-premise Meeting Connector Mmr | <4.8.12.20211115 | |
| Zoom Zoom On-premise Recording Connector | <5.1.0.65.20211116 | |
| Zoom Zoom On-premise Virtual Room Connector | <4.4.7266.20211117 | |
| Zoom Zoom On-premise Virtual Room Connector Load Balancer | <2.5.5692.20211117 | |
| Zoom VDI Azure Virtual Desktop | <5.8.4.21112 | |
| Zoom VDI Citrix | <5.8.4.21112 | |
| Zoom VDI VMware | <5.8.4.21112 | |
| Zoom VDI Windows Meeting Client | <5.8.4 |
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Reference Links
- agent/references
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/severity
- agent/title
- agent/softwarecombine
- agent/author
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/tags
- agent/event
- vendor/zoom
- canonical/zoom meetings
- vendor/google
- canonical/google android
- vendor/apple
- canonical/apple macos
- canonical/apple iphone os
- vendor/linux
- canonical/linux linux kernel
- vendor/microsoft
- canonical/microsoft windows
- canonical/zoom meetings for blackberry
- canonical/zoom meetings for intune
- canonical/zoom meetings for chrome os
- canonical/zoom rooms for conference rooms
- canonical/zoom controllers for zoom rooms
- canonical/zoom virtual desktop infrastructure
- canonical/zoom android meeting sdk
- canonical/zoom iphone os meeting sdk
- canonical/zoom macos meeting sdk
- canonical/zoom windows meeting sdk
- canonical/zoom android video sdk
- canonical/zoom iphone os video sdk
- canonical/zoom macos video sdk
- canonical/zoom windows video sdk
- canonical/zoom hybrid mmr
- canonical/zoom hybrid zproxy
- canonical/zoom zoom on-premise meeting connector controller
- canonical/zoom zoom on-premise meeting connector mmr
- canonical/zoom zoom on-premise recording connector
- canonical/zoom zoom on-premise virtual room connector
- canonical/zoom zoom on-premise virtual room connector load balancer
- canonical/zoom vdi azure virtual desktop
- canonical/zoom vdi citrix
- canonical/zoom vdi vmware
- canonical/zoom vdi windows meeting client