PT-2021-18978 · Apple · Tvos+7

Xinru Chi · Published 2021-08-24 · Updated 2021-12-28 · CVE-2021-30927

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS versions prior to 11.6.2 tvOS versions prior to 15.2 macOS Monterey versions prior to 12.1 macOS Catalina versions prior to Security Update 2021-008 iOS versions prior to 15.2 iPadOS versions prior to 15.2 watchOS versions prior to 8.3

Description A use after free issue was addressed with improved memory management. This issue may allow an application to execute arbitrary code with kernel privileges.

Recommendations For macOS versions prior to 11.6.2, update to macOS Big Sur 11.6.2 or later. For tvOS versions prior to 15.2, update to tvOS 15.2 or later. For macOS Monterey versions prior to 12.1, update to macOS Monterey 12.1 or later. For macOS Catalina versions prior to Security Update 2021-008, apply Security Update 2021-008 or later. For iOS versions prior to 15.2, update to iOS 15.2 or later. For iPadOS versions prior to 15.2, update to iPadOS 15.2 or later. For watchOS versions prior to 8.3, update to watchOS 8.3 or later.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-30927

Affected Products

Apple Macos

Ios

Ipados

Macos Big Sur

Macos Catalina

Macos Monterey

Tvos

Watchos

References · 11

• https://osv.dev/vulnerability/CVE-2021-30927 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30927 · Security Note
• https://support.apple.com/en-us/HT212976 · Note
• https://support.apple.com/en-us/HT212975 · Note
• https://support.apple.com/en-us/HT212981 · Note
• https://support.apple.com/en-us/102876 · Note
• https://support.apple.com/en-us/102874 · Note
• https://support.apple.com/en-us/HT212980 · Note
• https://support.apple.com/en-us/HT212978 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30927 · Note
• https://support.apple.com/en-us/HT212979 · Note