CVE-2021-1816

Published on: 09/08/2021 12:00:00 AM UTC

Last Modified on: 09/20/2021 08:08:00 PM UTC

CVE-2021-1816

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

Certain versions of Ipados from Apple contain the following vulnerability:

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.

CVE-2021-1816 has been assigned by [email protected] to track the vulnerability - currently rated as HIGH severity.
Affected Vendor/Software: Apple - iOS and iPadOS version < 14.5
Affected Vendor/Software: Apple - tvOS version < 14.5
Affected Vendor/Software: Apple - watchOS version < 7.4

CVSS3 Score: 7.8 - HIGH

Attack Vector ^ⓘ	Attack Complexity	Privileges Required	User Interaction
LOCAL	LOW	NONE	REQUIRED
Scope	Confidentiality Impact	Integrity Impact	Availability Impact
UNCHANGED	HIGH	HIGH	HIGH

CVSS2 Score: 9.3 - HIGH

Access Vector^ⓘ	Access Complexity	Authentication
NETWORK	MEDIUM	NONE
Confidentiality Impact	Integrity Impact	Availability Impact
COMPLETE	COMPLETE	COMPLETE

CVE References

Description	Tags ^ⓘ	Link
About the security content of watchOS 7.4 - Apple Support	support.apple.com text/html	MISC support.apple.com/en-us/HT212324
About the security content of tvOS 14.5 - Apple Support	support.apple.com text/html	MISC support.apple.com/en-us/HT212323
About the security content of iOS 14.5 and iPadOS 14.5 - Apple Support	support.apple.com text/html	MISC support.apple.com/en-us/HT212317

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Related QID Numbers

610334 Apple iOS 14.5 and iPadOS 14.5 Security Update Missing (HT212317)

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Apple	Ipados	All	All	All	All
Operating System	Apple	Iphone Os	All	All	All	All
Operating System	Apple	Tvos	All	All	All	All
Operating System	Apple	Watchos	All	All	All	All

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:*:*:*:*:*:*:*:*:

No vendor comments have been submitted for this CVE

Social Mentions

Source	Title	Posted (UTC)
@HuseyinKabasa	@WangTielei Are you planning to do a write up about CVE-2021-1816 ?	2021-06-10 10:16:50
@b1n4r1b01	@WangTielei Hi, is the ApplePPM bug from your MOSEC talk CVE-2021-1816? Can't trigger the posted POC on my device for some reason?	2021-08-04 11:00:52