CVE-2021-1816

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

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

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 URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo Apple - iOS and iPadOS version < 14.5
  • Affected Vendor/Software: URL Logo Apple - tvOS version < 14.5
  • Affected Vendor/Software: URL Logo 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
URL Logo MISC support.apple.com/en-us/HT212324
About the security content of tvOS 14.5 - Apple Support support.apple.com
text/html
URL Logo 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
URL Logo MISC support.apple.com/en-us/HT212317

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
AppleIpadosAllAllAllAll
Operating
System
AppleIphone OsAllAllAllAll
Operating
System
AppleTvosAllAllAllAll
Operating
System
AppleWatchosAllAllAllAll
  • 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:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @HuseyinKabasa @WangTielei Are you planning to do a write up about CVE-2021-1816 ? 2021-06-10 10:16:50
Twitter Icon @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
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