CVE-2021-34423

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Zoom Video Communications IncZoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows)unspecified < 5.8.4affected
Zoom Video Communications IncZoom Client for Meetings for Blackberry (for Android and iOS)unspecified < 5.8.1affected
Zoom Video Communications IncZoom Client for Meetings for intune (for Android and iOS)unspecified < 5.8.4affected
Zoom Video Communications IncZoom Client for Meetings for Chrome OSunspecified < 5.0.1affected
Zoom Video Communications IncZoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows)unspecified < 5.8.3affected
Zoom Video Communications IncControllers for Zoom Rooms (for Android, iOS, and Windows)unspecified < 5.8.3affected
Zoom Video Communications IncZoom VDI Windows Meeting Clientunspecified < 5.8.4affected
Zoom Video Communications IncZoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64)unspecified < 5.8.4.21112affected
Zoom Video Communications IncZoom 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)unspecified < 5.8.4.21112affected
Zoom Video Communications IncZoom 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)unspecified < 5.8.4.21112affected
Zoom Video Communications IncZoom Meeting SDK for Androidunspecified < 5.7.6.1922affected
Zoom Video Communications IncZoom Meeting SDK for iOSunspecified < 5.7.6.1082affected
Zoom Video Communications IncZoom Meeting SDK for macOSunspecified < 5.7.6.1340affected
Zoom Video Communications IncZoom Meeting SDK for Windowsunspecified < 5.7.6.1081affected
Zoom Video Communications IncZoom Video SDK (for Android, iOS, macOS, and Windows)unspecified < 1.1.2affected
Zoom Video Communications IncZoom On-Premise Meeting Connector Controllerunspecified < 4.8.12.20211115affected
Zoom Video Communications IncZoom On-Premise Meeting Connector MMRunspecified < 4.8.12.20211115affected
Zoom Video Communications IncZoom On-Premise Recording Connectorunspecified < 5.1.0.65.20211116affected
Zoom Video Communications IncZoom On-Premise Virtual Room Connectorunspecified < 4.4.7266.20211117affected
Zoom Video Communications IncZoom On-Premise Virtual Room Connector Load Balancerunspecified < 2.5.5692.20211117affected
Zoom Video Communications IncZoom Hybrid Zproxyunspecified < 1.0.1058.20211116affected
Zoom Video Communications IncZoom Hybrid MMRunspecified < 4.6.20211116.131_x86-64affected

Weaknesses

  • Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

ADP Enrichment

CVE Program Container

Additional References

References