CVE-2021-1816

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.

CVSS v3 7.8 HIGH
CVSS v2.0 9.3 HIGH

7.8^/10

CVSS v3 : HIGH

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

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/HT212317	Vendor Advisory
https://support.apple.com/en-us/HT212323	Vendor Advisory
https://support.apple.com/en-us/HT212324	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

20 Sep 2021, 20:08

Type	Values Removed	Values Added
CWE		CWE-119
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 9.3 v3 : 7.8
CPE		cpe:2.3:o:apple:ipados:::::::: cpe:2.3:o:apple:watchos:::::::: cpe:2.3:o:apple:iphone_os:::::::: cpe:2.3:o:apple:tvos::::::::
References	~~(MISC) https://support.apple.com/en-us/HT212324 -~~	(MISC) https://support.apple.com/en-us/HT212324 - Vendor Advisory
References	~~(MISC) https://support.apple.com/en-us/HT212323 -~~	(MISC) https://support.apple.com/en-us/HT212323 - Vendor Advisory
References	~~(MISC) https://support.apple.com/en-us/HT212317 -~~	(MISC) https://support.apple.com/en-us/HT212317 - Vendor Advisory

08 Sep 2021, 15:30

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-09-08 15:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-1816

Mitre link : CVE-2021-1816

CVE.ORG link : CVE-2021-1816

JSON object : View

Products Affected

apple

watchos
tvos
ipados
iphone_os

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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