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AppleCVE-2021-30981

HistoryAug 24, 2021 - 7:15 p.m.

CVE-2021-30981

2021-08-2419:15:23

CWE-120

apple

web.nvd.nist.gov

cve-2021-30981

buffer overflow

bounds checking

macos

monterey

catalina

big sur

security update

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

22.9%

JSON

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. An application may be able to execute arbitrary code with kernel privileges.

Affected configurations

Nvd

Vulners

Node

applemac_os_xRange10.15–10.15.7

applemac_os_xMatch10.15.7-

applemac_os_xMatch10.15.7security_update_2020-001

applemac_os_xMatch10.15.7security_update_2021-001

applemac_os_xMatch10.15.7security_update_2021-002

applemac_os_xMatch10.15.7security_update_2021-003

applemac_os_xMatch10.15.7security_update_2021-004

applemac_os_xMatch10.15.7security_update_2021-005

applemac_os_xMatch10.15.7security_update_2021-006

applemac_os_xMatch10.15.7security_update_2021-007

applemac_os_xMatch10.15.7supplemental_update

applemacosRange11.0–11.6.2

applemacosRange12.0–12.1

VendorProductVersionCPE
applemac_os_x*cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
applemac_os_x10.15.7cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*

Vendor	Product	Version	CPE
apple	mac_os_x	*	cpe:2.3:o:apple:mac_os_x::::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:-::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006::::::
apple	mac_os_x	10.15.7	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007::::::

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CNA Affected

[
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "12.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "11.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "2021",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

support.apple.com/en-us/HT212978

support.apple.com/en-us/HT212979

support.apple.com/en-us/HT212981

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

22.9%

JSON

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