CVE-2021-30916

HIGH

iPadOS < 14.8.1, iOS < 14.8.1, macOS < 10.15.7, macOS >=11.0 <11.6.1, tvOS <15.2, watchOS <8.3 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

References (9)

Core 9
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212869
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212871
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212872
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212867
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212868
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212975
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212980
Mailing List mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Dec/44
Mailing List mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Dec/43

Scores

CVSS v3 7.8
EPSS 0.0157
EPSS Percentile 72.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (10)
apple/ipad_os < 14.8.1
apple/ipados 15.0
apple/iphone_os 15.0
apple/iphone_os < 14.8.1
apple/mac_os_x 10.15.7 (9 CPE variants)
apple/mac_os_x < 10.15.7
apple/macos 12.0
apple/macos 11.0 - 11.6.1
apple/tvos < 15.2
apple/watchos < 8.3
Published Aug 24, 2021
Tracked Since Feb 18, 2026