CVE-2021-34423

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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://packetstormsecurity.com/files/165417/Zoom-Chat-Message-Processing-Buffer-Overflow.html	Third Party Advisory VDB Entry
https://explore.zoom.us/en/trust/security/security-bulletin	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:a:zoom:meetings_for_blackberry:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND

cpe:2.3:a:zoom:meetings_for_blackberry:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND

cpe:2.3:a:zoom:meetings_for_intune:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND

cpe:2.3:a:zoom:meetings_for_intune:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Configuration 10 (hide)

cpe:2.3:a:zoom:meetings_for_chrome_os:*:*:*:*:*:*:*:*

Configuration 11 (hide)

AND

cpe:2.3:a:zoom:rooms_for_conference_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND

cpe:2.3:a:zoom:rooms_for_conference_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND

cpe:2.3:a:zoom:rooms_for_conference_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND

cpe:2.3:a:zoom:controllers_for_zoom_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND

cpe:2.3:a:zoom:controllers_for_zoom_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:iphone_os:-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND

cpe:2.3:a:zoom:controllers_for_zoom_rooms:*:*:*:*:*:*:*:*

cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

Configuration 17 (hide)

cpe:2.3:a:zoom:virtual_desktop_infrastructure:*:*:*:*:*:*:*:*

Configuration 18 (hide)

OR	cpe:2.3:a:zoom:android_meeting_sdk::::::::
	cpe:2.3:a:zoom:iphone_os_meeting_sdk::::::::
	cpe:2.3:a:zoom:macos_meeting_sdk::::::::
	cpe:2.3:a:zoom:windows_meeting_sdk::::::::

Configuration 19 (hide)

OR	cpe:2.3:a:zoom:android_video_sdk::::::::
	cpe:2.3:a:zoom:iphone_os_video_sdk::::::::
	cpe:2.3:a:zoom:macos_video_sdk::::::::
	cpe:2.3:a:zoom:windows_video_sdk::::::::

Configuration 20 (hide)

OR	cpe:2.3:a:zoom:hybrid_mmr::::::::
	cpe:2.3:a:zoom:hybrid_zproxy::::::::
	cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_controller::::::::
	cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_mmr::::::::
	cpe:2.3:a:zoom:zoom_on-premise_recording_connector::::::::
	cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector::::::::
	cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector_load_balancer::::::::

Configuration 21 (hide)

OR	cpe:2.3:a:zoom:vdi_azure_virtual_desktop::::::::
	cpe:2.3:a:zoom:vdi_citrix::::::::
	cpe:2.3:a:zoom:vdi_vmware::::::::
	cpe:2.3:a:zoom:vdi_windows_meeting_client::::::::

History

29 Apr 2022, 17:57

Type	Values Removed	Values Added
References	~~(MISC) http://packetstormsecurity.com/files/165417/Zoom-Chat-Message-Processing-Buffer-Overflow.html -~~	(MISC) http://packetstormsecurity.com/files/165417/Zoom-Chat-Message-Processing-Buffer-Overflow.html - Third Party Advisory, VDB Entry

03 Jan 2022, 21:15

Type	Values Removed	Values Added
References		(MISC) http://packetstormsecurity.com/files/165417/Zoom-Chat-Message-Processing-Buffer-Overflow.html -

03 Dec 2021, 17:55

Type	Values Removed	Values Added
CPE		cpe:2.3:a:zoom:vdi_azure_virtual_desktop:::::::: cpe:2.3:a:zoom:virtual_desktop_infrastructure:::::::: cpe:2.3:o:google:android:-:::::::* cpe:2.3:a:zoom:macos_video_sdk:::::::: cpe:2.3:a:zoom:meetings_for_chrome_os:::::::: cpe:2.3:a:zoom:meetings:::::::: cpe:2.3:a:zoom:android_video_sdk:::::::: cpe:2.3:o:microsoft:windows:-:::::::* cpe:2.3:a:zoom:macos_meeting_sdk:::::::: cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector:::::::: cpe:2.3:o:apple:iphone_os:-:::::::* cpe:2.3:a:zoom:hybrid_zproxy:::::::: cpe:2.3:a:zoom:android_meeting_sdk:::::::: cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_controller:::::::: cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_mmr:::::::: cpe:2.3:a:zoom:rooms_for_conference_rooms:::::::: cpe:2.3:a:zoom:meetings_for_blackberry:::::::: cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:a:zoom:iphone_os_meeting_sdk:::::::: cpe:2.3:a:zoom:windows_video_sdk:::::::: cpe:2.3:o:linux:linux_kernel:-:::::::* cpe:2.3:a:zoom:meetings_for_intune:::::::: cpe:2.3:a:zoom:zoom_on-premise_recording_connector:::::::: cpe:2.3:a:zoom:hybrid_mmr:::::::: cpe:2.3:a:zoom:vdi_windows_meeting_client:::::::: cpe:2.3:a:zoom:vdi_vmware:::::::: cpe:2.3:a:zoom:windows_meeting_sdk:::::::: cpe:2.3:a:zoom:vdi_citrix:::::::: cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector_load_balancer:::::::: cpe:2.3:a:zoom:controllers_for_zoom_rooms:::::::: cpe:2.3:a:zoom:iphone_os_video_sdk::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
References	~~(MISC) https://explore.zoom.us/en/trust/security/security-bulletin -~~	(MISC) https://explore.zoom.us/en/trust/security/security-bulletin - Vendor Advisory
CWE		CWE-120

02 Dec 2021, 09:15

Type	Values Removed	Values Added
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 before version 5.8.4, 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.	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.

24 Nov 2021, 17:57

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-11-24 17:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-34423

Mitre link : CVE-2021-34423

CVE.ORG link : CVE-2021-34423

JSON object : View

Products Affected

zoom

iphone_os_meeting_sdk
vdi_citrix
meetings_for_blackberry
vdi_vmware
hybrid_mmr
macos_meeting_sdk
virtual_desktop_infrastructure
zoom_on-premise_virtual_room_connector_load_balancer
vdi_windows_meeting_client
windows_meeting_sdk
vdi_azure_virtual_desktop
rooms_for_conference_rooms
zoom_on-premise_recording_connector
zoom_on-premise_meeting_connector_controller
windows_video_sdk
iphone_os_video_sdk
meetings
android_video_sdk
meetings_for_intune
zoom_on-premise_meeting_connector_mmr
controllers_for_zoom_rooms
hybrid_zproxy
zoom_on-premise_virtual_room_connector
meetings_for_chrome_os
macos_video_sdk
android_meeting_sdk

apple

macos
iphone_os

linux

linux_kernel

microsoft

windows

google

android

CWE

CWE-120

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

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This can potentially allow a malicious actor to crash the service or application, or leverage this vulnerability to execute arbitrary code."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad de desbordamiento de b\u00fafer en Zoom Client for Meetings (para Android, iOS, Linux, macOS y Windows) antes de la versi\u00f3n 5.8.4, Zoom Client for Meetings for Blackberry (para Android e iOS) antes de la versi\u00f3n 5.8.1, Zoom Client for Meetings for intune (para Android e iOS) antes de la versi\u00f3n 5.8.4, Zoom Client for Meetings for Chrome OS antes de la versi\u00f3n 5.0.1, Zoom Rooms for Conference Room (para Android, AndroidBali, macOS y Windows) antes de la versi\u00f3n 5. 8.3, Controllers for Zoom Rooms (para Android, iOS y Windows) antes de la versi\u00f3n 5.8.3, Zoom VDI Windows Meeting Client antes de la versi\u00f3n 5.8.4, Zoom VDI Azure Virtual Desktop Plugins (para Windows x86 o x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) antes de la versi\u00f3n 5. 8.4.21112, Zoom VDI Citrix Plugins (para Windows x86 o x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) antes de la versi\u00f3n 5.8.4. 21112, Zoom VDI VMware Plugins (para Windows x86 o x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) antes de la versi\u00f3n 5.8.4.21112, Zoom Meeting SDK para Android antes de la versi\u00f3n 5. 7.6.1922, Zoom Meeting SDK para iOS antes de la versi\u00f3n 5.7.6.1082, Zoom Meeting SDK para macOS antes de la versi\u00f3n 5.7.6.1340, Zoom Meeting SDK para Windows antes de la versi\u00f3n 5.7.6.1081, Zoom Video SDK (para Android, iOS, macOS y Windows) antes de la versi\u00f3n 1. 1.2, Zoom On-Premise Meeting Connector Controller antes de la versi\u00f3n 4.8.12.20211115, Zoom On-Premise Meeting Connector MMR antes de la versi\u00f3n 4.8.12.20211115, Zoom On-Premise Recording Connector antes de la versi\u00f3n 5.1.0.65.20211116, Zoom On-Premise Virtual Room Connector antes de la versi\u00f3n 4. 4.7266.20211117, Zoom On-Premise Virtual Room Connector Load Balancer antes de la versi\u00f3n 2.5.5692.20211117, Zoom Hybrid Zproxy antes de la versi\u00f3n 1.0.1058.20211116, y Zoom Hybrid MMR antes de la versi\u00f3n 4.6.20211116.131_x86-64. Esto puede permitir potencialmente a un actor malicioso bloquear el servicio o la aplicaci\u00f3n, o aprovechar esta vulnerabilidad para ejecutar c\u00f3digo arbitrario"}], "lastModified": "2022-04-29T17:57:42.427", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54574671-72FA-4FD2-9018-E777D5EE1A61", "versionEndExcluding": "5.8.3"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zoom:meetings:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EBF584BF-ED3F-481B-BD29-44E2900E7F2B", "versionEndExcluding": "5.8.4"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", 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