CVE-2021-34423 Buffer overflow in Zoom client and other products

2021-11-2400:00:00

Zoom

www.cve.org

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

9.5 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

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.

CNA Affected

[
  {
    "product": "Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Client for Meetings for Blackberry (for Android and iOS)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Client for Meetings for intune (for Android and iOS)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Client for Meetings for Chrome OS",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.0.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) ",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Controllers for Zoom Rooms (for Android, iOS, and Windows)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom VDI Windows Meeting Client",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4.21112",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "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)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4.21112",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "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)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.8.4.21112",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Meeting SDK for Android",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.7.6.1922",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Meeting SDK for iOS",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.7.6.1082",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Meeting SDK for macOS",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.7.6.1340",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Meeting SDK for Windows",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.7.6.1081",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Video SDK (for Android, iOS, macOS, and Windows)",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "1.1.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom On-Premise Meeting Connector Controller",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "4.8.12.20211115",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom On-Premise Meeting Connector MMR",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "4.8.12.20211115",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom On-Premise Recording Connector",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "5.1.0.65.20211116",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom On-Premise Virtual Room Connector ",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "4.4.7266.20211117",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom On-Premise Virtual Room Connector Load Balancer ",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "2.5.5692.20211117",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Hybrid Zproxy",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "1.0.1058.20211116",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Zoom Hybrid MMR",
    "vendor": "Zoom Video Communications Inc",
    "versions": [
      {
        "lessThan": "4.6.20211116.131_x86-64",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]