PT-2021-18919 · Apple · Apple Macos+4

Manish Bhatt + 1 · Published 2021-08-24 · Updated 2023-01-09 · CVE-2021-30857

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Apple macOS versions prior to Big Sur 11.6 Apple iOS versions prior to 14.8 and 15 Apple iPadOS versions prior to 14.8 and 15 Apple tvOS versions prior to 15 Apple watchOS versions prior to 8

Description A race condition issue was addressed with improved locking, which may allow a malicious application to execute arbitrary code with kernel privileges.

Recommendations For macOS versions prior to Big Sur 11.6, update to macOS Big Sur 11.6 or later. For iOS versions prior to 14.8, update to iOS 14.8 or later. For iOS versions prior to 15, update to iOS 15 or later. For iPadOS versions prior to 14.8, update to iPadOS 14.8 or later. For iPadOS versions prior to 15, update to iPadOS 15 or later. For tvOS versions prior to 15, update to tvOS 15 or later. For watchOS versions prior to 8, update to watchOS 8 or later.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2021-30857

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 10

• https://osv.dev/vulnerability/CVE-2021-30857 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30857 · Security Note
• https://support.apple.com/en-us/HT212804 · Note
• https://support.apple.com/en-us/HT212807 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30857 · Note
• https://support.apple.com/en-us/HT212814 · Note
• https://support.apple.com/en-us/HT212815 · Note
• https://support.apple.com/en-us/HT212805 · Note
• https://support.apple.com/en-us/HT212819 · Note
• https://support.apple.com/en-us/103147 · Note