CVE-2021-1834

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to execute arbitrary code with kernel privileges.
Overview
  • CVE ID
  • CVE-2021-1834
  • Assigner
  • product-security@apple.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-09-08T15:15:10
  • Last Modified Date
  • 2021-09-15T15:35:39
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.4:beta4:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-001:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-002:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* 1 OR
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* 1 OR 11.0 11.3
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://support.apple.com/en-us/HT212327 Vendor Advisory
https://support.apple.com/en-us/HT212325 Vendor Advisory
https://support.apple.com/en-us/HT212326 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1834
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1834
History
Created Old Value New Value Data Type Notes
2022-05-10 16:05:13 Added to TrackCVE
2022-12-05 09:59:04 2021-09-08T15:15Z 2021-09-08T15:15:10 CVE Published Date updated
2022-12-05 09:59:04 2021-09-15T15:35:39 CVE Modified Date updated
2022-12-05 09:59:04 Analyzed Vulnerability Status updated