CVE-2021-30857

high

Description

A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.

References

https://support.apple.com/en-us/HT212804

https://support.apple.com/en-us/HT212805

https://support.apple.com/en-us/HT212807

https://support.apple.com/en-us/HT212814

https://support.apple.com/en-us/HT212815

https://support.apple.com/en-us/HT212819

Details

Source: Mitre, NVD

Published: 2021-08-24

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High