PT-2021-5440 · Apple · Ipados+4

Linus Henze · Published 2021-05-24 · Updated 2023-01-09 · CVE-2021-30740

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS versions prior to 11.4 tvOS versions prior to 14.6 watchOS versions prior to 7.5 iOS versions prior to 14.6 iPadOS versions prior to 14.6

Description A logic issue was addressed with improved validation, which could allow a malicious application to execute arbitrary code with kernel privileges. The issue is related to insufficient access control in the kernel of Mac OS, tvOS, iOS, iPadOS, and watchOS operating systems, potentially allowing an attacker to elevate their privileges.

Recommendations For macOS versions prior to 11.4, update to macOS Big Sur 11.4 or later. For tvOS versions prior to 14.6, update to tvOS 14.6 or later. For watchOS versions prior to 7.5, update to watchOS 7.5 or later. For iOS versions prior to 14.6, update to iOS 14.6 or later. For iPadOS versions prior to 14.6, update to iPadOS 14.6 or later.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

BDU:2021-06284

CVE-2021-30740

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2021-30740 · Security Note
• https://bdu.fstec.ru/vul/2021-06284 · Security Note
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://support.apple.com/en-us/HT212532 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30740 · Vendor Advisory
• https://support.apple.com/en-us/HT212533 · Vendor Advisory
• https://support.apple.com/en-us/HT212528 · Vendor Advisory
• https://support.apple.com/en-us/103131 · Note
• https://t.me/cybersecuritytechnologies/4416 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30740 · Note
• https://cybersecurity-help.cz/vdb/SB2021052504 · Note