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AppleCVE-2021-1816

HistorySep 08, 2021 - 3:15 p.m.

CVE-2021-1816

2021-09-0815:15:09

CWE-119

apple

web.nvd.nist.gov

cve-2021-1816

buffer overflow

ios

ipados

watchos

tvos

security vulnerability

nvd

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

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to execute arbitrary code with kernel privileges.

Affected configurations

Nvd

Vulners

Node

appleipadosRange<14.5

appleiphone_osRange<14.5

appletvosRange<14.5

applewatchosRange<7.4

VendorProductVersionCPE
appleipados*cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
appleiphone_os*cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
appletvos*cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
applewatchos*cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
apple	ipados	*	cpe:2.3:o:apple:ipados::::::::
apple	iphone_os	*	cpe:2.3:o:apple:iphone_os::::::::
apple	tvos	*	cpe:2.3:o:apple:tvos::::::::
apple	watchos	*	cpe:2.3:o:apple:watchos::::::::

CNA Affected

[
  {
    "product": "iOS and iPadOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.5",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "tvOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.5",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "watchOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "7.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

support.apple.com/en-us/HT212317

support.apple.com/en-us/HT212323

support.apple.com/en-us/HT212324

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

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

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