CVE-2021-30977

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-30977
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may be able to execute arbitrary code with kernel privileges.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212979
https://support.apple.com/en-us/HT212981
https://support.apple.com/kb/HT213183
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212979
https://support.apple.com/en-us/HT212981
https://support.apple.com/kb/HT213183
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:05

Type Values Removed Values Added
References () https://support.apple.com/en-us/HT212978 - () https://support.apple.com/en-us/HT212978 -
References () https://support.apple.com/en-us/HT212979 - () https://support.apple.com/en-us/HT212979 -
References () https://support.apple.com/en-us/HT212981 - () https://support.apple.com/en-us/HT212981 -
References () https://support.apple.com/kb/HT213183 - () https://support.apple.com/kb/HT213183 -

03 Sep 2022, 03:57

Type Values Removed Values Added
References (MISC) https://support.apple.com/en-us/HT212978 - Vendor Advisory (MISC) https://support.apple.com/en-us/HT212978 - Release Notes, Vendor Advisory
References (MISC) https://support.apple.com/en-us/HT212981 - Vendor Advisory (MISC) https://support.apple.com/en-us/HT212981 - Release Notes, Vendor Advisory
References (CONFIRM) https://support.apple.com/kb/HT213183 - (CONFIRM) https://support.apple.com/kb/HT213183 - Release Notes, Vendor Advisory
References (MISC) https://support.apple.com/en-us/HT212979 - Vendor Advisory (MISC) https://support.apple.com/en-us/HT212979 - Release Notes, Vendor Advisory

26 May 2022, 03:15

Type Values Removed Values Added
References
  • (CONFIRM) https://support.apple.com/kb/HT213183 -

30 Dec 2021, 18:16

Type Values Removed Values Added
CWE CWE-120
References (MISC) https://support.apple.com/en-us/HT212979 - (MISC) https://support.apple.com/en-us/HT212979 - Vendor Advisory
References (MISC) https://support.apple.com/en-us/HT212981 - (MISC) https://support.apple.com/en-us/HT212981 - Vendor Advisory
References (MISC) https://support.apple.com/en-us/HT212978 - (MISC) https://support.apple.com/en-us/HT212978 - Vendor Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 9.3
v3 : 7.8
CPE cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*

23 Dec 2021, 21:15

Type Values Removed Values Added
References
  • (MISC) https://support.apple.com/en-us/HT212979 -
  • (MISC) https://support.apple.com/en-us/HT212981 -
  • (MISC) https://support.apple.com/en-us/HT212978 -
Summary ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by the CVE program. Notes: none. A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may be able to execute arbitrary code with kernel privileges.

24 Aug 2021, 19:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-24 19:15

Updated : 2024-11-21 06:05

NVD link : CVE-2021-30977

Mitre link : CVE-2021-30977

CVE.ORG link : CVE-2021-30977

JSON object : View

Products Affected

apple

  • mac_os_x
  • macos
CWE
CWE-120

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